Staff profile
Professor Tom Lancaster
Professor
Affiliation | Telephone |
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Professor in the Department of Physics | +44 (0) 191 33 43536 |
Deputy Head of Department in the Department of Physics | +44 (0) 191 33 43536 |
Department Rep (Physics) in the Institute of Medieval and Early Modern Studies |
Biography
Muon spectroscopy: an introduction
Oxford University Press has now published Muon Spectroscopy: an introduction, a new textbook on the technique of muon spin rotation and relaxation. This book has been edited by Stephen Blundell (Oxford), Roberto De Renzi (Parma), Tom Lancaster (Durham) and Francis Pratt (ISIS).
Muons, radioactive particles produced in accelerators, have emerged as an important tool to study problems in condensed matter physics and chemistry. Beams of muons with all their spins polarized can be used to investigate a variety of static and dynamic effects and hence to deduce properties concerning magnetism, superconductivity, molecular or chemical dynamics and a large number of other phenomena. The technique was originally the preserve of a few specialists located in particle physics laboratories. Today it is used by scientists from a very wide range of scientific backgrounds and interests.
This modern, pedagogic introduction to muon spectroscopy is written with the beginner in the field in mind, but also aims to serve as a reference for more experienced researchers. The key principles are illustrated by numerous practical examples of the application of the technique to different areas of science and there are many worked examples and problems provided to test understanding. The book vividly demonstrates the power of the technique to extract important information in many different scientific contexts, all stemming, ultimately, from the exquisite magnetic sensitivity of the implanted muon spin.
General relativity and Quantum field theory for the gifted amateur – two books available now
Two books by Stephen Blundell and myself are out now, these are General relativity for the gifted amateur and Quantum field theory for the gifted amateur.
Click the above links for more information and to order your copy.
Research Interests
When atoms form a solid and electrons interact collective phenomena emerge. These phenomena include the phases of magnetic order, superfluidity and superconductivity, the emergence of new particles such as the magnon or the phonon and the occurence of topological objects such as kinks and vortices. Condensed matter physics is the investigation of this exotic world and provides the same fundamental insight into the Universe as the study of elementary particles or black holes.
I use muons to investigate condensed matter physics. Muons are subatomic particles that act as microscopic probes of magnetism. Subjects in which I'm interested include collective states of matter such as magnets, superconductors and glasses along with their excitations such as spin waves, vortices and diffusion. My work covers a wide range of scales from the quantum mechanical interaction of nuclei to the large scale dynamics of polymer chains.
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Muons
Muons have a spin 1/2, which will Larmour precess in a magnetic field. They are also unstable and live for only 2.2 us (on average!). We detect their decay products and these tell us essentially which way each muon-spin was pointing at the moment of death. The technique we employ is known as muon-spin relaxation and involves stopping muons in materials where they precess until they decay. This tells us about the local magnetic fields in a material, making it useful for investigating magnets and the vortex phase in superconductors. Muons are produced using particle accelerators based at large facilities. I use the ISIS facility (http://www.isis.stfc.ac.uk/) in the UK, which is the world's most intense source of pulsed muons and neutrons and the Swiss Muon Source based at the Paul Scherrer Institut (http://www.psi.ch/).
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Magnetism in reduced dimensions
Despite being one of the oldest discoveries in Physics, magnetism is relatively poorly understood. In some very beautiful systems, magnetic interactions may be constrained to act along a line of atoms (one-dimension) or in a plane of atoms (two-dimensions). These different dimensionalities are of fundamental importance and lead to exotic physical properties. An effective route to investigating these low-dimensional (i.e. 2D and 1D) phenomena is through the study of molecular magnets, which are self-assembled polymers formed through bridging paramagnetic cations (such as Cu2+) with organic molecular building blocks. The richness of carbon chemistry means that, in principle, molecular magnets can be nano-engineered to exhibit low dimensional properties.
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Frustrated magnets
In some magnets interactions tend to oppose each other's influence and are therefore in competition. Such systems are said to be frustrated; it is not possible to satisfy all of the magnetic interactions to find the material's ground state. Materials showing these effects offer an insight into the factors that cause systems to adopt a particular ground state (such as permanently magnetic or disordered). One particularly exciting possibility for a frustrated system is the formation of a spin liquid state. This is a long sought after phase of matter which shows no long range magnetic order down to zero temperature, but which is nonetheless stable. In fact, we believe that we recently may have found such a state in an organic magnet!
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Unconventional superconductors
Understanding unconventional superconductors is perhaps the most urgent problem in condensed matter physics. Many of the clues suggest that the behaviour of these materials is caused by a subtle interplay of magnetism and superconductivity. Muons are ideal probes of such systems since not only are we able to probe magnetism, but we may also use muons to map the field distribution within the superconducting vortex state allowing an accurate determination of the superconducting penetration depth. My interests currently lie in the recently discovered iron arsenide superconductors, where magnetism, structural distortions and superconductivity coexist across a rich phase diagram.
Esteem Indicators
- 2020: President of the International Society for Muon Spectroscopy:
Publications
Authored book
- General Relativity for the Gifted Amateur
Lancaster, T., & Blundell, S. (2025). General Relativity for the Gifted Amateur. Oxford University Press - The Routledge Handbook of Emergence
Gibb, S., Hendry, R., & Lancaster, T. (2019). The Routledge Handbook of Emergence. Taylor and Francis. https://doi.org/10.4324/9781315675213 - Quantum Field Theory for the Gifted Amateur
Lancaster, T., & Blundell, S. J. (2014). Quantum Field Theory for the Gifted Amateur. Oxford University Press
Chapter in book
- The Metal: A Model for Modern Physics
Lancaster, T. (2022). The Metal: A Model for Modern Physics. In From Electrons to Elephants and Elections. Springer Verlag. https://doi.org/10.1007/978-3-030-92192-7_21 - The Use of Downward Causation in Condensed Matter Physics
Clark, S., & Lancaster, T. (2017). The Use of Downward Causation in Condensed Matter Physics. In M. P. Paoletti, & F. Orilia (Eds.), Philosophical and scientific perspectives on downward causation (131-145). Routledge
Conference Paper
- Static and Fluctuating Magnetic Moments in the Ferroelectric Metal LiOsO3
Kirschner, F. K., Lang, F., Pratt, F. L., Lancaster, T., Shi, Y., Guo, Y., Boothroyd, A. T., & Blundell, S. J. (2018, December). Static and Fluctuating Magnetic Moments in the Ferroelectric Metal LiOsO3. Presented at 14th International Conference on Muon Spin Rotation, Relaxation and Resonance (μSR2017), Sapporo
Edited book
- Muon Spectroscopy: an Introduction
Blundell, S., De Renzi, R., Lancaster, T., & Pratt, F. (Eds.). (2021). Muon Spectroscopy: an Introduction. Oxford University Press
Journal Article
- Quantum spin liquids
Lancaster, T. (online). Quantum spin liquids. Contemporary Physics, 64(2), https://doi.org/10.1080/00107514.2023.2284522 - Electronic structure calculations for muon spectroscopy
Blundell, S. J., Bonacci, M., Bonfà, P., De Renzi, R., Huddart, B. M., Lancaster, T., Liborio, L. M., Onuorah, I. J., Pizzi, G., Pratt, F. L., & Wilkinson, J. M. (2025). Electronic structure calculations for muon spectroscopy. Electronic Structure, 7(2), Article 023001. https://doi.org/10.1088/2516-1075/adcb7c - Muon spectroscopy investigation of anomalous dynamic magnetism in NiI2
Breeze, T. L., Huddart, B. M., Hernández-Melián, A., Bentley, N. P., Mayoh, D. A., Wood, G. D. A., Balakrishnan, G., Wilkinson, J., Pratt, F. L., Hicken, T. J., Clark, S. J., & Lancaster, T. (2025). Muon spectroscopy investigation of anomalous dynamic magnetism in NiI2. Physical Review B, 111(10), Article 104420. https://doi.org/10.1103/physrevb.111.104420 - Field-orientation-dependent magnetic phases in GdRu₂Si₂ probed with muon-spin spectroscopy
Huddart, B. M., Hernández-Melián, A., Wood, G. D. A., Mayoh, D. A., Gomilšek, M., Guguchia, Z., Wang, C., Hicken, T. J., Blundell, S. J., Balakrishnan, G., & Lancaster, T. (2025). Field-orientation-dependent magnetic phases in GdRu₂Si₂ probed with muon-spin spectroscopy. Physical Review B, 111(5), Article 054440. https://doi.org/10.1103/physrevb.111.054440 - Anisotropic Skyrmion and Multi-q Spin Dynamics in Centrosymmetric Gd2PdSi3
Gomilšek, M., Hicken, T., Wilson, M., Franke, K., Huddart, B., Štefančič, A., Holt, S., Balakrishnan, G., Mayoh, D., Birch, M., Moody, S., Luetkens, H., Guguchia, Z., Telling, M., Baker, P., Clark, S., & Lancaster, T. (2025). Anisotropic Skyrmion and Multi-q Spin Dynamics in Centrosymmetric Gd2PdSi3. Physical Review Letters, 134(4), Article 046702. https://doi.org/10.1103/physrevlett.134.046702 - Magnetic properties of a staggered S=1 chain with an alternating single-ion anisotropy direction
Vaidya, S., Curley, S. P. M., Manuel, P., Stewart, J. R., Le, M. D., Balz, C., Shiroka, T., Blundell, S. J., Wheeler, K. A., Calderon-Lin, I., Manson, Z. E., Manson, J. L., Singleton, J., Lancaster, T., Johnson, R. D., & Goddard, P. A. (2025). Magnetic properties of a staggered S=1 chain with an alternating single-ion anisotropy direction. Physical Review B, 111, Article 014421. https://doi.org/10.1103/physrevb.111.014421 - Pseudo-easy-axis anisotropy in antiferromagnetic S=1 diamond-lattice systems
Vaidya, S., Hernández-Melián, A., Tidey, J. P., Curley, S. P. M., Sharma, S., Manuel, P., Wang, C., Hannaford, G. L., Blundell, S. J., Manson, Z. E., Manson, J. L., Singleton, J., Lancaster, T., Johnson, R. D., & Goddard, P. A. (2024). Pseudo-easy-axis anisotropy in antiferromagnetic S=1 diamond-lattice systems. Physical Review B, 110(17), https://doi.org/10.1103/physrevb.110.174438 - Magnetic structure and crystal-field states of antiferromagnetic CeNiGe3: Neutron scattering and μSR investigations
Kataria, A., Kumar, R., Adroja, D. T., Ritter, C., Anand, V. K., Hillier, A. D., Huddart, B. M., Lancaster, T., Rols, S., Koza, M. M., Langridge, S., & Sundaresan, A. (2024). Magnetic structure and crystal-field states of antiferromagnetic CeNiGe3: Neutron scattering and μSR investigations. Physical Review B, 110(18), Article 184412. https://doi.org/10.1103/physrevb.110.184412 - Weyl fermion excitations in the ideal Weyl semimetal CuTlSe2
Wang, C. N., Tay, D., Dong, Q. X., Okvátovity, Z., Huddart, B. M., Ma, C. Y., Yokoyama, K., Yu, L., Lancaster, T., Chen, G. F., Ott, H.-R., & Shiroka, T. (2024). Weyl fermion excitations in the ideal Weyl semimetal CuTlSe2. Physical Review Research, 6(3), Article 033229. https://doi.org/10.1103/physrevresearch.6.033229 - Magnetism in the axion insulator candidate Eu5In2Sb6
Rahn, M. C., Wilson, M. N., Hicken, T. J., Pratt, F. L., Wang, C., Orlandi, F., Khalyavin, D. D., Manuel, P., Veiga, L. S. I., Bombardi, A., Francoual, S., Bereciartua, P., Sukhanov, A. S., Thompson, J. D., Thomas, S. M., Rosa, P. F. S., Lancaster, T., Ronning, F., & Janoschek, M. (2024). Magnetism in the axion insulator candidate Eu5In2Sb6. Physical Review B, 109(17), Article 174404. https://doi.org/10.1103/physrevb.109.174404 - Depth-dependent magnetic crossover in a room-temperature skyrmion-hosting multilayer
Hicken, T. J., Wilson, M. N., Salman, Z., Zhang, S. L., Holt, S. J. R., Prokscha, T., Suter, A., Pratt, F. L., van der Laan, G., Hesjedal, T., & Lancaster, T. (2024). Depth-dependent magnetic crossover in a room-temperature skyrmion-hosting multilayer. Physical Review B, 109(13), Article 134423. https://doi.org/10.1103/physrevb.109.134423 - Asymmetric phase diagram and dimensional crossover in a system of spin-12 dimers under applied hydrostatic pressure
Coak, M. J., Curley, S. P. M., Hawkhead, Z., Tidey, J. P., Graf, D., Clark, S. J., Sengupta, P., Manson, Z. E., Lancaster, T., Goddard, P. A., & Manson, J. L. (2023). Asymmetric phase diagram and dimensional crossover in a system of spin-12 dimers under applied hydrostatic pressure. Physical Review B, 108(22), Article 224431. https://doi.org/10.1103/physrevb.108.224431 - Band-filling-controlled magnetism from transition metal intercalation in N1/3NbS2 revealed with first-principles calculations
Hawkhead, Z., Hicken, T. J., Bentley, N. P., Huddart, B. M., Clark, S. J., & Lancaster, T. (2023). Band-filling-controlled magnetism from transition metal intercalation in N1/3NbS2 revealed with first-principles calculations. Physical Review Materials, 7(11), Article 114002. https://doi.org/10.1103/physrevmaterials.7.114002 - Spatially anisotropic S=1 square-lattice antiferromagnet with single-ion anisotropy realized in a Ni(II) pyrazine-n,n′-dioxide coordination polymer
Manson, J. L., Pajerowski, D. M., Donovan, J. M., Twamley, B., Goddard, P. A., Johnson, R., Bendix, J., Singleton, J., Lancaster, T., Blundell, S. J., Herbrych, J., Baker, P. J., Steele, A. J., Pratt, F. L., Franke-Chaudet, I., McDonald, R. D., Plonczak, A., & Manuel, P. (2023). Spatially anisotropic S=1 square-lattice antiferromagnet with single-ion anisotropy realized in a Ni(II) pyrazine-n,n′-dioxide coordination polymer. Physical Review B, 108(9), Article 094425. https://doi.org/10.1103/physrevb.108.094425 - DFT + μ: Density functional theory for muon site determination
Blundell, S., & Lancaster, T. (2023). DFT + μ: Density functional theory for muon site determination. Applied Physics Reviews, 10(2), Article 021316. https://doi.org/10.1063/5.0149080 - Beyond single tetrahedron physics of the breathing pyrochlore compound Ba3Yb2Zn5O11
Bag, R., Dissanayake, S. E., Yan, H., Shi, Z., Graf, D., Choi, E. S., Marjerrison, C., Lang, F., Lancaster, T., Qiu, Y., Chen, W., Blundell, S. J., Nevidomskyy, A. H., & Haravifard, S. (2023). Beyond single tetrahedron physics of the breathing pyrochlore compound Ba3Yb2Zn5O11. Physical Review B, 107(14), https://doi.org/10.1103/physrevb.107.l140408 - Studying spin diffusion and quantum entanglement with LF-µSR
Pratt, F., Lang, F., Blundell, S., Steinhardt, W., Haravifard, S., Mañas-Valero, S., Coronado, E., Huddart, B., & Lancaster, T. (2023). Studying spin diffusion and quantum entanglement with LF-µSR. Journal of Physics: Conference Series, 2462(1), https://doi.org/10.1088/1742-6596/2462/1/012038 - μSR investigation of magnetism in κ−(ET)2X : Antiferromagnetism
Huddart, B., Lancaster, T., Blundell, S., Guguchia, Z., Taniguchi, H., Clark, S., & Pratt, F. (2023). μSR investigation of magnetism in κ−(ET)2X : Antiferromagnetism. Physical Review Research, 5(1), Article 013015. https://doi.org/10.1103/physrevresearch.5.013015 - Field-Tunable Berezinskii-Kosterlitz-Thouless Correlations in a Heisenberg Magnet
Opherden, D., Tepaske, M., Bärtl, F., Weber, M., Turnbull, M., Lancaster, T., Blundell, S., Baenitz, M., Wosnitza, J., Landee, C., Moessner, R., Luitz, D., & Kühne, H. (2023). Field-Tunable Berezinskii-Kosterlitz-Thouless Correlations in a Heisenberg Magnet. Physical Review Letters, 130(8), Article 086704. https://doi.org/10.1103/physrevlett.130.086704 - Many-body quantum muon effects and quadrupolar coupling in solids
Gomilšek, M., Pratt, F. L., Cottrell, S. P., Clark, S. J., & Lancaster, T. (2023). Many-body quantum muon effects and quadrupolar coupling in solids. Communications Physics, 6(1), https://doi.org/10.1038/s42005-023-01260-7 - Muon-spin relaxation investigation of magnetic bistability in a crystalline organic radical compound
Hernández-Melían, A., Huddart, B., Pratt, F., Blundell, S., Mills, M., Young, H., Preuss, K., & Lancaster, T. (2023). Muon-spin relaxation investigation of magnetic bistability in a crystalline organic radical compound. Journal of Physics and Chemistry of Solids, 181, https://doi.org/10.1016/j.jpcs.2023.111493 - Muon-Nitrogen Quadrupolar Level Crossing Resonance in a Charge Transfer Salt
Berlie, A., Pratt, F. L., Huddart, B. M., Lancaster, T., & Cottrell, S. P. (2022). Muon-Nitrogen Quadrupolar Level Crossing Resonance in a Charge Transfer Salt. Journal of Physical Chemistry C, 126(17), 7529-7534. https://doi.org/10.1021/acs.jpcc.2c00617 - Energy-gap driven low-temperature magnetic and transport properties in Cr1/3MS2(M = Nb, Ta)
Hicken, T., Hawkhead, Z., Wilson, M., Huddart, B., Hall, A., Balakrishnan, G., Wang, C., Pratt, F., Clark, S., & Lancaster, T. (2022). Energy-gap driven low-temperature magnetic and transport properties in Cr1/3MS2(M = Nb, Ta). Physical Review B, 105(6), Article L060407. https://doi.org/10.1103/physrevb.105.l060407 - Probing the magnetic polaron state in the ferromagnetic semiconductor HgCr2Se4 with muon-spin spectroscopy and resistance-fluctuation measurements
Mitschek, M., Hicken, T. J., Yang, S., Wilson, M. N., Pratt, F. L., Wang, C., Blundell, S. J., Li, Z., Li, Y., Lancaster, T., & Müller, J. (2022). Probing the magnetic polaron state in the ferromagnetic semiconductor HgCr2Se4 with muon-spin spectroscopy and resistance-fluctuation measurements. Physical Review B, 105(6), Article 064404. https://doi.org/10.1103/physrevb.105.064404 - Magnetism in the Néel-skyrmion host GaV4S8 under pressure
Hicken, T., Wilson, M., Holt, S., Khassanov, R., Lees, M., Gupta, R., Das, D., Balakrishnan, G., & Lancaster, T. (2022). Magnetism in the Néel-skyrmion host GaV4S8 under pressure. Physical Review B, 105(13), https://doi.org/10.1103/physrevb.105.134414 - MuFinder: A program to determine and analyse muon stopping sites
Huddart, B., Hernández-Melián, A., Hicken, T., Gomilšek, M., Hawkhead, Z., Clark, S., Pratt, F., & Lancaster, T. (2022). MuFinder: A program to determine and analyse muon stopping sites. Computer Physics Communications, 280, https://doi.org/10.1016/j.cpc.2022.108488 - Radio-Frequency Manipulation of State Populations in an Entangled Fluorine-Muon-Fluorine System
Billington, D., Riordan, E., Salman, M., Margineda, D., Gill, G. J., Cottrell, S. P., McKenzie, I., Lancaster, T., Graf, M. J., & Giblin, S. R. (2022). Radio-Frequency Manipulation of State Populations in an Entangled Fluorine-Muon-Fluorine System. Physical Review Letters, 129(7), https://doi.org/10.1103/physrevlett.129.077201 - Intrinsic nature of spontaneous magnetic fields in superconductors with time-reversal symmetry breaking
Huddart, B., Onuorah, I., Isah, M., Bonfa, P., Blundell, S., Clark, S., De Renzi, R., & Lancaster, T. (2021). Intrinsic nature of spontaneous magnetic fields in superconductors with time-reversal symmetry breaking. Physical Review Letters, 127(23), Article 237002. https://doi.org/10.1103/physrevlett.127.237002 - Muon sites in PbF2 and YF3: Decohering environments and the role of anion Frenkel defects
Wilkinson, J., Pratt, F., Lancaster, T., Baker, P., & Blundell, S. (2021). Muon sites in PbF2 and YF3: Decohering environments and the role of anion Frenkel defects. Physical Review B, 104(22), Article L220409. https://doi.org/10.1103/physrevb.104.l220409 - Anomalous magnetic exchange in a dimerized quantum magnet composed of unlike spin species
Curley, S., Huddart, B., Kamenskyi, D., Coak, M., Williams, R., Ghannadzadeh, S., Schneider, A., Okubo, S., Sakurai, T., Ohta, H., Tidey, J., Graf, D., Clark, S., Blundell, S., Pratt, F., Telling, M., Lancaster, T., Manson, J., & Goddard, P. (2021). Anomalous magnetic exchange in a dimerized quantum magnet composed of unlike spin species. Physical Review B, 104(21), Article 214435. https://doi.org/10.1103/physrevb.104.214435 - Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation
Wilson, M., Hicken, T., Gomilšek, M., Štefančič, A., Balakrishnan, G., Loudon, J., Twitchett-Harrison, A., Pratt, F., Telling, M., & Lancaster, T. (2021). Spin dynamics in bulk MnNiGa and Mn1.4Pt0.9Pd0.1Sn investigated by muon spin relaxation. Physical Review B, 104(13), Article 134414. https://doi.org/10.1103/physrevb.104.134414 - Magnetic order and ballistic spin transport in a sine-Gordon spin chain
Huddart, B., Gomilšek, M., Hicken, T., Pratt, F., Blundell, S., Goddard, P., Kaech, S., Manson, J., & Lancaster, T. (2021). Magnetic order and ballistic spin transport in a sine-Gordon spin chain. Physical Review B, 103(6), Article L060405. https://doi.org/10.1103/physrevb.103.l060405 - Quantum phases and spin liquid properties of 1T-TaS2
Mañas-Valero, S., Huddart, B. M., Lancaster, T., Coronado, E., & Pratt, F. L. (2021). Quantum phases and spin liquid properties of 1T-TaS2. npj Quantum Materials, 6(1), Article 69. https://doi.org/10.1038/s41535-021-00367-w - Megahertz dynamics in skyrmion systems probed with muon-spin relaxation
Hicken, T., Wilson, M., Franke, K., Huddart, B., Hawkhead, Z., Gomilšek, M., Clark, S., Pratt, F., Štefančič, A., Hall, A., Ciomaga Hatnean, M., Balakrishnan, G., & Lancaster, T. (2021). Megahertz dynamics in skyrmion systems probed with muon-spin relaxation. Physical Review B, 103(2), https://doi.org/10.1103/physrevb.103.024428 - Magnetic ground state of the one-dimensional ferromagnetic chain compounds M(NCS)2(thiourea)2 (M=Ni,Co)
Curley, S., Scatena, R., Williams, R., Goddard, P., Macchi, P., Hicken, T., Lancaster, T., Xiao, F., Blundell, S., Zapf, V., Eckert, J., Krenkel, E., Villa, J., Rhodehouse, M., & Manson, J. (2021). Magnetic ground state of the one-dimensional ferromagnetic chain compounds M(NCS)2(thiourea)2 (M=Ni,Co). Physical Review Materials, 5(3), Article 034401. https://doi.org/10.1103/physrevmaterials.5.034401 - The Internal Field in a Ferromagnetic Crystal with Chiral Molecular Packing of Achiral Organic Radicals
Blundell, S. J., Lancaster, T., Baker, P. J., Pratt, F. L., Shiomi, D., Sato, K., & Takui, T. (2021). The Internal Field in a Ferromagnetic Crystal with Chiral Molecular Packing of Achiral Organic Radicals. Magnetochemistry, 7(5), https://doi.org/10.3390/magnetochemistry7050071 - Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange
Xiao, F., Blackmore, W., Huddart, B., Gomilšek, M., Hicken, T., Baines, C., Baker, P., Pratt, F., Blundell, S., Lu, H., Singleton, J., Gawryluk, D., Turnbull, M., Krämer, K., Goddard, P., & Lancaster, T. (2020). Magnetic order and disorder in a quasi-two-dimensional quantum Heisenberg antiferromagnet with randomized exchange. Physical Review B, 102(17), Article 174429. https://doi.org/10.1103/physrevb.102.174429 - Extremely well isolated two-dimensional spin-1/2 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF
Opherden, D., Nizar, N., Richardson, K., Monroe, J., Turnbull, M., Polson, M., Vela, S., Blackmore, W., Goddard, P., Singleton, J., Choi, E., Xiao, F., Williams, R., Lancaster, T., Pratt, F., Blundell, S., Skourski, Y., Uhlarz, M., Ponomaryov, A., Zvyagin, S., …Landee, C. (2020). Extremely well isolated two-dimensional spin-1/2 antiferromagnetic Heisenberg layers with a small exchange coupling in the molecular-based magnet CuPOF. Physical Review B, 102(6), Article 064431. https://doi.org/10.1103/physrevb.102.064431 - Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet
Arh, T., Gomilšek, M., Prelovšek, P., Pregelj, M., Klanjšek, M., Ozarowski, A., Clark, S., Lancaster, T., Sun, W., Mi, J.-X., & Zorko, A. (2020). Origin of Magnetic Ordering in a Structurally Perfect Quantum Kagome Antiferromagnet. Physical Review Letters, 125(2), Article 027203. https://doi.org/10.1103/physrevlett.125.027203 - Magnetism and Néel skyrmion dynamics in GaV4S8−ySey
Hicken, T., Holt, S., Franke, K., Hawkhead, Z., Štefančič, A., Wilson, M., Gomilšek, M., Huddart, B., Clark, S., Lees, M., Pratt, F., Blundell, S., Balakrishnan, G., & Lancaster, T. (2020). Magnetism and Néel skyrmion dynamics in GaV4S8−ySey. Physical Review Research, 2(3), Article 032001. https://doi.org/10.1103/physrevresearch.2.032001 - Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets
Manson, J. L., Manson, Z. E., Sargent, A., Villa, D. Y., Etten, N. L., Blackmore, W. J., Curley, S. P., Williams, R. C., Brambleby, J., Goddard, P. A., Ozarowski, A., Wilson, M. N., Huddart, B. M., Lancaster, T., Johnson, R. D., Blundell, S. J., Bendix, J., Wheeler, K. A., Lapidus, S. H., Xiao, F., …Singleton, J. (2020). Enhancing easy-plane anisotropy in bespoke Ni(II) quantum magnets. Polyhedron, 180, Article 114379. https://doi.org/10.1016/j.poly.2020.114379 - Near-ideal molecule-based Haldane spin chain
Williams, R. C., Blackmore, W. J., Curley, S. P., Lees, M. R., Birnbaum, S. M., Singleton, J., Huddart, B. M., Hicken, T. J., Lancaster, T., Blundell, S. J., Xiao, F., Ozarowski, A., Pratt, F. L., Voneshen, D. J., Guguchia, Z., Baines, C., Schlueter, J. A., Villa, D. Y., Manson, J. L., & Goddard, P. A. (2020). Near-ideal molecule-based Haldane spin chain. Physical Review Research, 2(1), Article 013082. https://doi.org/10.1103/physrevresearch.2.013082 - Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV4S8−ySey
Štefančič, A., Holt, S. J., Lees, M. R., Ritter, C., Gutmann, M. J., Lancaster, T., & Balakrishnan, G. (2020). Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV4S8−ySey. Scientific Reports, 10(1), Article 9813. https://doi.org/10.1038/s41598-020-65676-9 - From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets
Tustain, K., Ward-O’Brien, B., Bert, F., Han, T., Luetkens, H., Lancaster, T., Huddart, B. M., Baker, P. J., & Clark, L. (2020). From magnetic order to quantum disorder in the Zn-barlowite series of S = 1/2 kagomé antiferromagnets. npj Quantum Materials, 5(1), Article 74. https://doi.org/10.1038/s41535-020-00276-4 - Investigating the magnetic ground state of the skyrmion host material Cu2OSeO3 using long-wavelength neutron diffraction
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Duffy, L., Steinke, N.-J., Krieger, J., Figueroa, A., Kummer, K., Lancaster, T., Giblin, S., Pratt, F., Blundell, S., Prokscha, T., Suter, A., Langridge, S., Strocov, V., Salman, Z., van der Laan, G., & Hesjedal, T. (2018). Microscopic effects of Dy doping in the topological insulator Bi2Te3. Physical Review B, 97(17), Article 174427. https://doi.org/10.1103/physrevb.97.174427 - Implications of bond disorder in a S=1 kagome lattice
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Williams, R., Xiao, F., Lancaster, T., De Renzi, R., Allodi, G., Bordignon, S., Freeman, P., Pratt, F., Giblin, S., Möller, J., Blundell, S., Boothroyd, A., & Prabhakaran, D. (2016). Magnetic phase diagram of La2-xSrxCoO 4 revised using muon-spin relaxation. Physical Review B, 93(14), Article 140406(R). https://doi.org/10.1103/physrevb.93.140406 - La2SrCr2O7F2: A Ruddlesden–Popper Oxyfluoride Containing Octahedrally Coordinated Cr4+ Centers
Zhang, R., Read, G., Lang, F., Lancaster, T., Blundell, S., & Hayward, M. (2016). La2SrCr2O7F2: A Ruddlesden–Popper Oxyfluoride Containing Octahedrally Coordinated Cr4+ Centers. Inorganic Chemistry, 55(6), 3169-3174. https://doi.org/10.1021/acs.inorgchem.6b00114 - Control of the third dimension in copper-based square-lattice antiferromagnets
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Liu, J., Goddard, P., Singleton, J., Brambleby, J., Foronda, F., Moeller, J., Kohama, Y., Ghannadzadeh, S., Ardavan, A., Blundell, S., Lancaster, T., Xiao, F., Williams, R., Pratt, F., Baker, P., Wierschem, K., Lapidus, S., Stone, K., Stephens, P., Bendix, J., …Manson, J. (2016). Antiferromagnetism in a Family of S = 1 Square Lattice Coordination Polymers NiX2(pyz)2 (X = Cl, Br, I, NCS; pyz = Pyrazine). Inorganic Chemistry, 55(7), 3515-3529. https://doi.org/10.1021/acs.inorgchem.5b02991 - Experimental and Theoretical Electron Density Analysis of Copper Pyrazine Nitrate Quasi-Low-Dimensional Quantum Magnets
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Baker, M. L., Lancaster, T., Chiesa, A., Amoretti, G., Baker, P. J., Barker, C., Blundell, S. J., Carretta, S., Collison, D., Güdel, H. U., Guidi, T., McInnes, E. J., Möller, J. S., Mutka, H., Ollivier, J., Pratt, F. L., Santini, P., Tuna, F., Tregenna-Piggott, P. L., Vitorica-Yrezabal, I. J., …Winpenny, R. E. (2016). Studies of a Large Odd-Numbered Odd-Electron Metal Ring: Inelastic Neutron Scattering and Muon Spin Relaxation Spectroscopy of Cr8Mn. Chemistry - A European Journal, 22(5), 1779-1788. https://doi.org/10.1002/chem.201503431 - Reduction and emergence in the fractional quantum Hall state
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Brambleby, J., Goddard, P., Johnson, R., Liu, J., Lancaster, T., Manuel, P., Baker, P., Singleton, J., Schwalbe, S., Spurgeon, P., Tran, H., Peterson, P., Corbey, J., & Manson, J. (2015). Magnetic ground state of the two isostructual polymeric quantum magnets [Cu(HF2)(pyrazine)2]SbF6 and [Co(HF2)(pyrazine)2]SbF6 investigated with neutron powder diffraction. Physical review B, 92(13), Article 134406. https://doi.org/10.1103/physrevb.92.134406 - Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu2OSeO3
Lancaster, T., Williams, R., Thomas, I., Xiao, F., Pratt, F., Blundell, S., Loudon, J., Hesjedal, T., Clark, S., Hatton, P., Ciomaga Hatnean, M., Keeble, D., & Balakrishnan, G. (2015). Transverse field muon-spin rotation signature of the skyrmion-lattice phase in Cu2OSeO3. Physical review B, 91(22), Article 224408. https://doi.org/10.1103/physrevb.91.224408 - Spin diffusion in the low-dimensional molecular quantum Heisenberg antiferromagnet Cu(pyz)(NO3)2 detected with implanted muons
Xiao, F., Möller, J., Lancaster, T., Williams, R., Pratt, F., Blundell, S., Ceresoli, D., Barton, A., & Manson, J. (2015). Spin diffusion in the low-dimensional molecular quantum Heisenberg antiferromagnet Cu(pyz)(NO3)2 detected with implanted muons. Physical review B, 91(14), Article 144417. https://doi.org/10.1103/physrevb.91.144417 - Magnetostructural relationship in the tetrahedral spin-chain oxide CsCoO2
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Lancaster, T., Goddard, P., Blundell, S., Foronda, F., Ghannadzadeh, S., Möller, J., Baker, P., Pratt, F., Baines, C., Huang, L., Wosnitza, J., McDonald, R., Modic, K., Singleton, J., Topping, C., Beale, T., Xiao, F., Schlueter, J., Barton, A., Cabrera, R., …Manson, J. (2014). Controlling Magnetic Order and Quantum Disorder in Molecule-Based Magnets. Physical Review Letters, 112(20), Article 207201. https://doi.org/10.1103/physrevlett.112.207201 - Dipolar ordering in a molecular nanomagnet detected using muon spin relaxation
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