Staff profile

Brief Biography

Adekunle joined Durham University as the Principal of Trevelyan College and Professor of Physics in January 2020. He graduated with a First Class Honors Degree in Physics from the University of Ilorin, Nigeria (1990), MPhil (Microelectronic Engineering and semiconductor Physics), and Ph.D. degrees from the University of Cambridge, in 1993 and 1996, respectively. He was elected a Junior Research Fellow at Trinity College, the University of Cambridge in 1996. He then worked as a Senior Research Engineer at the Data Storage Institute, Singapore in 1997, before returning to Cambridge to take up his fellowship at the Nanoscale Science Laboratory. He joined the Department of Electrical & Computer Engineering, National University of Singapore (NUS) as an Assistant Professor in 2000. He was promoted to Associate Professor with tenure in 2006 and Full Professor in July 2012. He was the founding Master of the Ridge View Residential College at NUS.

His research focuses on the fundamental understanding and exploration of nanomagnets in non-volatile memory technologies. He has conducted pioneering research work in the field of nanomagnetism. He has won many awards including being named one of the top 100 young innovators in the world by TR100, an award-winning MIT magazine on technology. In 2013 he was selected Institute of Electrical and Electronic Engineering Magnetics Society Distinguished Lecturer. Adekunle is a Fellow of the American Physical Society, Fellow of the Institute of Physics, Fellow of the Institute of Nanotechnology, and a Royal Society Wolfson Fellow.

• Nanotechnology & Spintronics, Magnonics and Spin Wave Devices, Magnetic Biosensors
• Advanced Nanofabrication Techniques, Functional Nanomaterials for Spintronic Applications

Journal Article

• Kuchibhotla, M., Haldar, A., & Adeyeye, A. O. (2024). Investigation of magnetization dynamics in trilayer width-modulated nanowires. Journal of Applied Physics, 135(10), Article 103903. https://doi.org/10.1063/5.0191447
• Tian, C., & Adeyeye, A. O. (2024). Tunable 2-D magnonic crystals: effect of packing density. Nanoscale, https://doi.org/10.1039/d3nr05582e
• de Rojas, J., Atkinson, D., & Adeyeye, A. O. (2023). Tuning magnon spectra via interlayer coupling in pseudo-3D nanostructured artificial spin ice arrays. Applied Physics Letters, 123(23), Article 232407. https://doi.org/10.1063/5.0177447
• Chiroli, S., Faurie, D., Haboussi, M., Adeyeye, A. O., & Zighem, F. (2023). Magnetization dynamics of elastically strained nanostructures studied by coupled micromagnetic-mechanical simulations. Physical Review B, 108, Article 024406. https://doi.org/10.1103/PhysRevB.108.024406
• Dai, Y., Wang, H., Yang, T., Adeyeye, A. O., & Zhang, Z. (2022). Elongation of skyrmions by Dzyaloshinskii–Moriya interaction in helimagnetic films. Rare Metals, 41(9), 3150-3159. https://doi.org/10.1007/s12598-022-02023-z
• Chaudhuri, U., Singh, N., Mahendiran, R., & Adeyeye, A. O. (2022). Tuning spin wave modes in yttrium iron garnet films with stray fields. Nanoscale, 14(33), 12022 - 12029. https://doi.org/10.1039/d2nr00618a
• Zhou, X., Tartakovskaya, E., Kakazei, G., & Adeyeye, A. (2021). Engineering spin wave spectra in thick Ni80Fe20 rings by using competition between exchange and dipolar fields. Physical Review B, 104(21), Article 214402. https://doi.org/10.1103/physrevb.104.214402
• Faurie, D., Adeyeye, A., & Zighem, F. (2021). Prospects toward flexible magnonic systems. Journal of Applied Physics, 130(15), Article 150901. https://doi.org/10.1063/5.0055976
• Kuchibhotla, M., Talapatra, A., Haldar, A., & Adeyeye, A. O. (2021). Magnetization dynamics of single and trilayer permalloy nanodots. Journal of Applied Physics, 130(8), Article 083906. https://doi.org/10.1063/5.0060689
• Haldar, A., & Adeyeye, A. O. (2021). Functional magnetic waveguides for magnonics. Applied Physics Letters, 119(6), Article 060501. https://doi.org/10.1063/5.0061528
• Challab, N., Faurie, D., Haboussi, M., Adeyeye, A. O., & Zighem, F. (2021). Differentiated Strain-Control of Localized Magnetic Modes in Antidot Arrays. ACS Applied Materials and Interfaces, 13(25), 29906-29915. https://doi.org/10.1021/acsami.1c05582
• Talapatra, A., & Adeyeye, A. (2021). Coupled magnetic nanostructures: Engineering lattice configurations. Applied Physics Letters, 118(17), Article 172404. https://doi.org/10.1063/5.0045235
• Barman, A., Gubbiotti, G., Ladak, S., Adeyeye, A. O., Krawczyk, M., Gräfe, J., …Winklhofer, M. (2021). The 2021 Magnonics Roadmap. Journal of Physics: Condensed Matter, https://doi.org/10.1088/1361-648x/abec1a
• Luo, Z., Lu, L., Xie, H., Xu, Y., Chen, X., Talapatra, A., …Wu, Y. (2020). Platinum composition dependence of spin-orbit torque in (Fe0.8Mn0.2)1−xPtx single-layer ferromagnet. Applied Physics Letters, 117(17), Article 172402. https://doi.org/10.1063/5.0023957
• Talapatra, A., & Adeyeye, A. (2020). Linear chains of nanomagnets: engineering the effective magnetic anisotropy. Nanoscale, 12(40), 20933-20944. https://doi.org/10.1039/d0nr06026g
• Kakazei, G., Guslienko, K., Verba, R., Ding, J., Liu, X., & Adeyeye, A. (2020). Non-uniform along thickness spin excitations in magnetic vortex-state nanodots. Low Temperature Physics, 46(8), Article 863. https://doi.org/10.1063/10.0001555
• Gubbiotti, G., Zhou, X., Adeyeye, A., Varvaro, G., & Kostylev, M. (2020). Effect of exchange and dipolar interlayer interactions on the magnonic band structure of dense Fe/Cu/Py nanowires with symmetric and asymmetric layer widths. Physical Review B, 101(22), Article 224431. https://doi.org/10.1103/physrevb.101.224431
• Ding, J., Wang, J., Zhou, X., Liu, Y., Sun, K., Adeyeye, A. O., …Luo, J. (2020). Constraints on the Velocity and Spin Dependent Exotic Interaction at the Micrometer Range. Physical Review Letters, 124(16), Article 161801. https://doi.org/10.1103/physrevlett.124.161801
• Haldar, A., & Adeyeye, A. O. (2020). Microwave assisted gating of spin wave propagation. Applied Physics Letters, 116(16), Article 162403. https://doi.org/10.1063/5.0006945
• Tian, C., Chaudhuri, U., Singh, N., & Adeyeye, A. O. (2020). Direct mapping of spin wave modes of individual Ni80Fe20 nanorings. Nanotechnology, 31(14), Article 145714. https://doi.org/10.1088/1361-6528/ab662f
• Talapatra, A., Singh, N., & Adeyeye, A. (2020). Magnetic Tunability of Permalloy Artificial Spin Ice Structures. Physical Review Applied, 13(1), Article 014034. https://doi.org/10.1103/physrevapplied.13.014034
• Haldar, A., & Adeyeye, A. O. (2020). Reconfigurable and self-biased magnonic metamaterials. Journal of Applied Physics, 128(24), Article 240902. https://doi.org/10.1063/5.0033254
• Navas, D., Verba, R., Hierro-Rodriguez, A., Bunyaev, S., Zhou, X., Adeyeye, A., …Kakazei, G. (2019). Route to form skyrmions in soft magnetic films. APL Materials, 7(8), https://doi.org/10.1063/1.5093371
• Chaudhuri, U., Mahendiran, R., & Adeyeye, A. O. (2019). Observation of phase dependent voltage signals in microwave spin pumping experiments. Applied Physics Letters, 115(2), https://doi.org/10.1063/1.5099365
• Kolmychek, I., Dolgikh, I., Zhou, X., Adeyeye, A., & Murzina, T. (2019). Magnetization-induced chirality in second harmonic generation response of U-shaped permalloy nanostructures. Physical Review B, 99(4), https://doi.org/10.1103/physrevb.99.045435
• Lueng, C., Lupo, P., Schefer, T., Metaxas, P., Adeyeye, A., & Kostylev, M. (2019). Sensitivity of ferromagnetic resonance in PdCo alloyed films to hydrogen gas. International Journal of Hydrogen Energy, 44(14), https://doi.org/10.1016/j.ijhydene.2019.01.234
• Gubbiotti, G., Zhou, X., Haghshenasfard, Z., Cottam, M., Adeyeye, A., & Kostylev, M. (2019). Interplay between intra- and inter-nanowires dynamic dipolar interactions in the spin wave band structure of Py/Cu/Py nanowires. Scientific Reports, 9(1), https://doi.org/10.1038/s41598-019-40131-6
• Merabtine, S., Zighem, F., Faurie, D., Garcia-Sanchez, A., Lupo, P., & Adeyeye, A. O. (2018). Multicracking and Magnetic Behavior of Ni80Fe20 Nanowires Deposited onto a Polymer Substrate. Nano Letters, 18(5), 3199-3202. https://doi.org/10.1021/acs.nanolett.8b00922
• Gubbiotti, G., Zhou, X., Haghshenasfard, Z., Cottam, M., & Adeyeye, A. (2018). Reprogrammable magnonic band structure of layered permalloy/Cu/permalloy nanowires. Physical Review B, 97(13), Article 134428. https://doi.org/10.1103/physrevb.97.134428
• Mamica, S., Zhou, X., Adeyeye, A., Krawczyk, M., & Gubbiotti, G. (2018). Spin-wave dynamics in artificial anti-spin-ice systems: Experimental and theoretical investigations. Physical Review B, 98(5), https://doi.org/10.1103/physrevb.98.054405
• Merabtine, S., Zighem, F., Garcia-Sanchez, A., Gunasekaran, V., Belmeguenai, M., Zhou, X., …Faurie, D. (2018). Origin of relationship between ferromagnetic response and damage in stretched systems. Scientific Reports, 8(1), https://doi.org/10.1038/s41598-018-32149-z
• Chaudhuri, U., Xiong, L., Mahendiran, R., & Adeyeye, A. O. (2018). Electrical detection of multiple ferromagnetic resonance modes in interlayer exchange coupled Fe20Ni80/Ru/Fe20Ni80 multilayers. Applied Physics Letters, 113(26), https://doi.org/10.1063/1.5054358
• Haldar, A., Tian, C., & Adeyeye, A. O. (2017). Isotropic transmission of magnon spin information without a magnetic field. Science Advances, 3(7), Article e1700638. https://doi.org/10.1126/sciadv.1700638
• Zhou, X., Tartakovskaya, E., Kakazei, G., & Adeyeye, A. (2017). Spin wave modes in out-of-plane magnetized nanorings. Physical Review B, 96(2), https://doi.org/10.1103/physrevb.96.024446
• nanowires with continuous width modulation. Physical Review B, 95(22), https://doi.org/10.1103/physrevb.95.224426
• Faurie, D., Zighem, F., Garcia-Sanchez, A., Lupo, P., & Adeyeye, A. (2017). Fragmentation and adhesion properties of CoFeB thin films on polyimide substrate. Applied Physics Letters, 110(9), https://doi.org/10.1063/1.4977710
• Tian, C., & Adeyeye, A. O. (2017). Tunable microwave properties of rhomboid shaped nanomagnet pairs. Applied Physics Letters, 111(26), https://doi.org/10.1063/1.5016599
• Schneider, T., Langer, M., Alekhina, J., Kowalska, E., Oelschlägel, A., Semisalova, A., …Bali, R. (2017). Programmability of Co-antidot lattices of optimized geometry. Scientific Reports, 7(1), https://doi.org/10.1038/srep41157
• Mruczkiewicz, M., Graczyk, P., Lupo, P., Adeyeye, A., Gubbiotti, G., & Krawczyk, M. (2017). Spin-wave nonreciprocity and magnonic band structure in a thin permalloy film induced by dynamical coupling with an array of Ni stripes. Physical Review B, 96(10), https://doi.org/10.1103/physrevb.96.104411
• Zhou, X., Chua, G., Singh, N., & Adeyeye, A. O. (2016). Large Area Artificial Spin Ice and Anti-Spin Ice Ni80 Fe20 Structures: Static and Dynamic Behavior. Advanced Functional Materials, 26(9), 1437-1444. https://doi.org/10.1002/adfm.201505165
• Kumar, D., Lupo, P., Haldar, A., & Adeyeye, A. (2016). Unconventional spin distributions in thick Ni80Fe20nanodisks. Applied Physics Letters, 108(19), https://doi.org/10.1063/1.4948972
• Verba, R., Hierro-Rodriguez, A., Navas, D., Ding, J., Liu, X., Adeyeye, A., …Kakazei, G. (2016). Spin-wave excitation modes in thick vortex-state circular ferromagnetic nanodots. Physical Review B, 93(21), https://doi.org/10.1103/physrevb.93.214437
• Lupo, P., Haghshenasfard, Z., Cottam, M., & Adeyeye, A. (2016). Ferromagnetic resonance study of interface coupling for spin waves in narrow NiFe/Ru/NiFe multilayer nanowires. Physical Review B, 94(21), https://doi.org/10.1103/physrevb.94.214431
• Haldar, A., & Adeyeye, A. O. (2016). Deterministic Control of Magnetization Dynamics in Reconfigurable Nanomagnetic Networks for Logic Applications. ACS Nano, 10(1), https://doi.org/10.1021/acsnano.5b07849
• Haldar, A., Kumar, D., & Adeyeye, A. O. (2016). A reconfigurable waveguide for energy-efficient transmission and local manipulation of information in a nanomagnetic device. Nature Nanotechnology, 11(5), 437-443. https://doi.org/10.1038/nnano.2015.332
• Lueng, C., Lupo, P., Metaxas, P. J., Kostylev, M., & Adeyeye, A. O. (2016). Nanopatterning-Enhanced Sensitivity and Response Time of Dynamic Palladium/Cobalt/Palladium Hydrogen Gas Sensors. Advanced Materials Technologies, 1(5), https://doi.org/10.1002/admt.201600097
• Rebello, A., & Adeyeye, A. (2016). Robust electric-field tunable opto-electrical behavior in Pt-NiO-Pt planar structures. Scientific Reports, 6(1), https://doi.org/10.1038/srep28007
• Sushruth, M., Ding, J., Duczynski, J., Woodward, R. C., Begley, R. A., Fangohr, H., …Metaxas, P. J. (2016). Resonance-Based Detection of Magnetic Nanoparticles and Microbeads Using Nanopatterned Ferromagnets. Physical Review Applied, 6(4), https://doi.org/10.1103/physrevapplied.6.044005
• Haldar, A., & Adeyeye, A. O. (2016). Artificial metamaterials for reprogrammable magnetic and microwave properties. Applied Physics Letters, 108(2), https://doi.org/10.1063/1.4939852
• Shimon, G., & Adeyeye, A. (2016). Direct observation of configurational anisotropy in coupled magnetic disk cluster using micro-focused Brillouin light scattering spectroscopy. Applied Physics Letters, 109(3), https://doi.org/10.1063/1.4959550
• Gubbiotti, G., Tacchi, S., Madami, M., Carlotti, G., Yang, Z., Ding, J., …Kostylev, M. (2016). Collective spin excitations in bicomponent magnonic crystals consisting of bilayer permalloy/Fe nanowires. Physical Review B, 93(18), https://doi.org/10.1103/physrevb.93.184411
• Haldar, A., & Adeyeye, A. O. (2016). Bias field free tunability of microwave properties based on geometrically controlled isolated permalloy nanomagnets. Applied Physics Letters, 108(16), https://doi.org/10.1063/1.4947092
• Xiong, L., & Adeyeye, A. (2016). Dynamic behavior of Ni80Fe20 nanowires with controlled periodic width modulation. Applied Physics Letters, 108(26), https://doi.org/10.1063/1.4954868
• Zhou, X., & Adeyeye, A. (2016). Magnetostatic spin wave modes in trilayer nanowire arrays probed using ferromagnetic resonance spectroscopy. Physical Review B, 94(5), https://doi.org/10.1103/physrevb.94.054410
• Ding, J., Kakazei, G. N., Liu, X., Guslienko, K. Y., & Adeyeye, A. O. (2015). Higher order vortex gyrotropic modes in circular ferromagnetic nanodots. Scientific Reports, 4(1), https://doi.org/10.1038/srep04796
• Haldar, A., & Adeyeye, A. (2015). Vortex chirality control in circular disks using dipole-coupled nanomagnets. Applied Physics Letters, 106(3), https://doi.org/10.1063/1.4906142
• Zhou, X., Ding, J., Kostylev, M., & Adeyeye, A. (2015). Spin wave spectra in perpendicularly magnetized permalloy rings. Applied Physics Letters, 106(11), https://doi.org/10.1063/1.4916029
• Gubbiotti, G., Montoncello, F., Tacchi, S., Madami, M., Carlotti, G., Giovannini, L., …Adeyeye, A. (2015). Angle-resolved spin wave band diagrams of square antidot lattices studied by Brillouin light scattering. Applied Physics Letters, 106(26), https://doi.org/10.1063/1.4923271
• Maccaferri, N., Inchausti, X., García-Martín, A., Cuevas, J. C., Tripathy, D., Adeyeye, A. O., & Vavassori, P. (2015). Resonant Enhancement of Magneto-Optical Activity Induced by Surface Plasmon Polariton Modes Coupling in 2D Magnetoplasmonic Crystals. ACS Photonics, 2(12), https://doi.org/10.1021/acsphotonics.5b00490
• Navas, D., Bi, L., Adeyeye, A. O., & Ross, C. A. (2015). Templates as Shadow Masks to Tune the Magnetic Anisotropy in Nanostructured CoCrPt/Ti Bilayer Films. Advanced Materials Interfaces, 2(7), https://doi.org/10.1002/admi.201400551
• Zhou, X., Kumar, D., Maksymov, I., Kostylev, M., & Adeyeye, A. (2015). Axially and radially quantized spin waves in thick permalloy nanodots. Physical review B, 92(5), https://doi.org/10.1103/physrevb.92.054401
• Metaxas, P., Sushruth, M., Begley, R., Ding, J., Woodward, R., Maksymov, I., …Kostylev, M. (2015). Sensing magnetic nanoparticles using nano-confined ferromagnetic resonances in a magnonic crystal. Applied Physics Letters, 106(23), https://doi.org/10.1063/1.4922392
• Guslienko, K., Kakazei, G., Ding, J., Liu, X., & Adeyeye, A. (2015). Giant moving vortex mass in thick magnetic nanodots. Scientific Reports, 5(1), https://doi.org/10.1038/srep13881
• Kakazei, G., Liu, X., Ding, J., Golub, V., Salyuk, O., Verba, R., …Adeyeye, A. (2015). Large four-fold magnetic anisotropy in two-dimensional modulated Ni80Fe20 films. Applied Physics Letters, 107(23), https://doi.org/10.1063/1.4936994
• Shimon, G., & Adeyeye, A. O. (2015). Direct Detection of Static Dipolar Interaction on a Single Nanodisk Using Microfocused Brillouin Light Scattering Spectroscopy. Advanced Electronic Materials, 1(5), https://doi.org/10.1002/aelm.201500070
• Tacchi, S., Gruszecki, P., Madami, M., Carlotti, G., Kłos, J., Krawczyk, M., …Gubbiotti, G. (2015). Universal dependence of the spin wave band structure on the geometrical characteristics of two-dimensional magnonic crystals. Scientific Reports, 5(1), https://doi.org/10.1038/srep10367
• Ding, J., Demidov, V., Cottam, M., Demokritov, S., & Adeyeye, A. (2014). Dynamic behavior of Ni80Fe20 nanowires with controlled defects. Applied Physics Letters, 104(14), https://doi.org/10.1063/1.4870837
• Gubbiotti, G., Malagò, P., Fin, S., Tacchi, S., Giovannini, L., Bisero, D., …Zivieri, R. (2014). Magnetic normal modes of bicomponent permalloy/cobalt structures in the parallel and antiparallel ground state. Physical review B, 90(2), https://doi.org/10.1103/physrevb.90.024419
• Liu, X., Nguyen, H. T., Ding, J., Cottam, M., & Adeyeye, A. (2014). Interlayer coupling inNi80Fe20/Ru/Ni80Fe20multilayer films: Ferromagnetic resonance experiments and theory. Physical review B, 90(6), https://doi.org/10.1103/physrevb.90.064428
• Shimon, G., Adeyeye, A., & Ross, C. (2014). Comparative study of the ferromagnetic resonance behavior of coupled rectangular and circular Ni80Fe20rings. Physical review B, 89(2), https://doi.org/10.1103/physrevb.89.024302
• Hou, C., Zhang, V., Ng, S., Kuok, M., Lim, H., Liu, X., & Adeyeye, A. (2014). Dispersion and origin of surface optical-like waves in a two-dimensional antidot-patterned structure with a soft intervening layer. Applied Physics Letters, 104(9), https://doi.org/10.1063/1.4868020
• Ding, J., Kakazei, G., Liu, X., Guslienko, K., & Adeyeye, A. (2014). Intensity inversion of vortex gyrotropic modes in thick ferromagnetic nanodots. Applied Physics Letters, 104(19), https://doi.org/10.1063/1.4878617
• Liu, X., Ding, J., Singh, N., Shimon, G., & Adeyeye, A. (2014). Magnetization dynamics of coupled Ni80Fe20 dots: Effects of configurational anisotropy and dipolar coupling. Applied Physics Letters, 105(5), https://doi.org/10.1063/1.4892635
• Kakazei, G., Liu, X., Ding, J., & Adeyeye, A. (2014). Ni80Fe20 film with periodically modulated thickness as a reconfigurable one-dimensional magnonic crystal. Applied Physics Letters, 104(4), https://doi.org/10.1063/1.4863508
• Chang, C. S., Kostylev, M., Ivanov, E., Ding, J., & Adeyeye, A. O. (2014). The phase accumulation and antenna near field of microscopic propagating spin wave devices. Applied Physics Letters, 104(3), https://doi.org/10.1063/1.4863078
• Shimon, G., Ravichandar, V., Adeyeye, A., & Ross, C. (2014). Simultaneous control of vortex polarity and chirality in thickness-modulated [Co/Pd]n/Ti/Ni80Fe20disks. Applied Physics Letters, 105(15), https://doi.org/10.1063/1.4897954

Patent

• Haldar, A., Kumar, D., & Adeyeye, A. (2019). Reconfigurable waveguide for spin wave transmission
• Rebello, A., & Adeyeye, A. (2018). Resistive switching co-sputtered Pt—(NiO—Al2O3)—Pt devices
• Rebello, A., & Adeyeye, A. (2018). Device incorporating an oxide film and method of fabricating the same
• Haldar, A., & Adeyeye, A. (2017). Nanomagnetic network structures and a method of reconfigurable operation based on magnetization dynamics