Topological Spintronics and Quantum Nanomagnetism Theory

SELECTED RECENT PUBLICATIONS:

O. J. Amin, S. F. Poole, S. Reimers, L. X. Barton, F. Maccherozzi, S. S. Dhesi, V. Novak, F. Krızek, J. S. Chauhan, R. P. Campion, A. W. Rushforth, T. Jungwirth, Oleg A. Tretiakov, K. W. Edmonds, and P. Wadley, Antiferromagnetic half-skyrmions electrically generated and controlled at room temperature,

Nature Nanotechnology 18, 849 (2023).

Daichi Kurebayashi and Oleg A. Tretiakov, 

Skyrmion nucleation on the surface of a topological insulator,

Physical Review Research 4, 043105 (2022).

K. Ohara, Y. Chen, J. Xia, M. Ezawa, Oleg A. Tretiakov, Z. Hou, Y. Zhou, G. Zhao, J. Yang, X. Liu, Reversible Transformation between Isolated Skyrmions and Bimerons,

Nano Letters 22, 8559  (2022).

B. Göbel, I. Mertig, and Oleg A. Tretiakov,

Beyond skyrmions: Review and perspectives of alternative magnetic quasiparticles,

Physics Reports 895, 1 (2021).

S. DuttaGupta, A. Kurenkov, Oleg A. Tretiakov, G. Krishnaswamy, G. Sala, V. Krizakova, F. Machherozzi, S. S. Dhesi, P. Gambardella, H. Ohno, and S. Fukami,

Spin-orbit torque switching of an antiferromagnetic metallic heterostructure,

Nature Comm. 11, 5715 (2020).

A. S. Samardak, A. V. Davydenko, A. G. Kolesnikov, A. Yu. Samardak, A. G. Kozlov, B. Pal, A. V. Ognev, A. V. Sadovnikov, S. A. Nikitov, A. V. Gerasimenko, I. H. Cha, Y. J. Kim, Oleg A. Tretiakov, and Young Keun Kim, Enhancement of perpendicular magnetic anisotropy and Dzyaloshinskii-Moriya interaction in thin ferromagnetic films by atomic-scale modulation of interfaces,

NPG Asia Materials 12, 51 (2020).

X. Li, L. Shen, Y. Bai, X. Zhang, J. Xia, M. Ezawa, Oleg A. Tretiakov, X. Xu, M. Mruczkiewicz, M. Krawczyk, Y. Xu, R.F.L. Evans, R.W. Chantrell, and Y. Zhou, Bimeron Clusters in Chiral Antiferromagnets,

NPJ Computational Materials 6, 169 (2020).

L. Shen, J. Xia, X. Zhang, M. Ezawa, Oleg A. Tretiakov, X. Liu, G. Zhao, and Y. Zhou, Current- Induced Dynamics and Chaos of Antiferromagnetic Bimerons,

Phys. Rev. Lett. 124, 037202 (2020).

S. Albarakati, C. Tan, Z.-J. Chen, J. G. Partridge, G. Zheng, L. Farrar, E. L.H. Mayes, M. R. Field, C. Lee, Y. Wang, Y. Xiong, M. Tian, F. Xiang, A. R. Hamilton, Oleg A. Tretiakov, D. Culcer, Y.-J. Zhao, L. Wang, Antisymmetric magnetoresistance in van der Waals Fe3GeTe2/graphite/Fe3GeTe2 trilayer heterostructures,

Science Advances 5, eaaw0409 (2019).

B. Gobel, A. Mook, J. Henk, I. Mertig, and Oleg A. Tretiakov,

Magnetic bimerons as skyrmion analogues in in-plane magnets,

Phys. Rev. B 99, 060407(R) (2019).

C. A. Akosa, O. A. Tretiakov, G. Tatara, and A. Manchon, Theory of the Topological Spin Hall Effect in Antiferromagnetic Skyrmions: Impact on Current-Induced Motion,

Phys. Rev. Lett. 121, 097204 (2018).

K. Litzius, I. Lemesh, B. Kruger, P. Bassirian, L. Caretta, K. Richter, F. Buttner, K. Sato, O. A. Tretiakov, J. Forster, R. M. Reeve, M. Weigand, I. Bykova, H. Stoll, G. Schutz, G. S. D. Beach, and M. Klaui, Skyrmion Hall Effect Revealed by Direct Time-Resolved X-Ray Microscopy,

Nature Physics, 13, 170 (2017).

J. Barker and Oleg A. Tretiakov, Static and Dynamic Properties of Antiferromagnetic Skyrmions in the Presence of Applied Current and Temperature,

Phys. Rev. Lett. 116, 147203 (2016).


Past workshops organised:

International Workshop “Spintronics 2019”

International Workshop “Spintronics 2019” was devoted to recent developments in the field of spintronics. Quantum transport processes and related non-equilibrium phenomena in nanoscale systems were discussed.

Oleg A. Tretiakov

School of Physics

University of New South Wales

Sydney, 2052 Australia

Email: o.tretiakov@unsw.edu.au

Tel.: +61 2 9385 6301

MY RESEARCH

    My primary scientific interests are in quantum nanomagnetism and topological spintronics theory. In particular, I focus on topics such as dynamics of skyrmions and other topological spin textures in ferro/antiferromagnets, spintronics with topological insulators, quantum phenomena in low-dimensional spin-orbit systems. In my research I employ both analytical and numerical techniques. The majority of my work either builds on observations made in recent experiments or predicts new phenomena that should be observable in the near future.