Collins Akosa - My portal

Profile Information

Affiliation: Applied Physics, Waseda University

Researcher number: 10815822
ORCID iD: https://orcid.org/0000-0002-5367-9972
J-GLOBAL ID: 202101003792339088
Researcher ID: C-3367-2015
researchmap Member ID: R000024447

Papers

Decoupling the influences of chiral damping and Dzyaloshinskii-Moriya interaction in chiral magnetic domain walls

Collins Ashu Akosa, Gen Tatara, Aurélien Manchon, Masahito Mochizuki

Physical Review B, 110(2) 024420/1-8, Jul 16, 2024 Peer-reviewed
Thermal Spin Torque in Double-Barrier Tunnel Junctions with Magnetic Insulators

Christian Ortiz Pauyac, Collins Ashu Akosa, Gen Tatara, Mairbek Chshiev, Alan Kalitsov

Physical Review Applied, Jun 1, 2021
Magnon pair emission from a relativistic domain wall in antiferromagnets

Gen Tatara, Collins Ashu Akosa, Rubén M. Otxoa de Zuazola

Physical Review Research, Nov 12, 2020
Nonlinear Control of Damping Constant by Electric Field in Ultrathin Ferromagnetic Films

Bivas Rana, Collins Ashu Akosa, Katsuya Miura, Hiromasa Takahashi, Gen Tatara, YoshiChika Otani

Physical Review Applied, Jul 14, 2020
Stabilization of Skyrmions in a Nanodisk Without an External Magnetic Field

Hang Li, Collins Ashu Akosa, Peng Yan, Yuanxu Wang, Zhenxiang Cheng

Physical Review Applied, 13(3), Mar 18, 2020
Topological Hall signatures of magnetic hopfions

Börge Göbel, Collins Ashu Akosa, Gen Tatara, Ingrid Mertig

Physical Review Research, 2(1), Mar 13, 2020
Tuning the Skyrmion Hall Effect via Engineering of Spin-Orbit Interaction

Collins Ashu Akosa, Hang Li, Gen Tatara, Oleg A. Tretiakov

Physical Review Applied, 12(5), Nov 13, 2019
Theory of chiral effects in magnetic textures with spin-orbit coupling

Akosa, C.A., Takeuchi, A., Yuan, Z., Tatara, G.

Physical Review B, 98(18), 2018
Topological Hall and spin Hall effects in disordered skyrmionic textures

Ndiaye, P.B., Akosa, C.A., Manchon, A.

Physical Review B, 95(6), 2017
Dirac spin-orbit torques and charge pumping at the surface of topological insulators

Ndiaye, P.B., Akosa, C.A., Fischer, M.H., Vaezi, A., Kim, E.-A., Manchon, A.

Physical Review B, 96(1), 2017
Intrinsic nonadiabatic topological torque in magnetic skyrmions and vortices

Akosa, C.A., Ndiaye, P.B., Manchon, A.

Physical Review B, 95(5), 2017
Theory of Topological Spin Hall Effect in Antiferromagnetic Skyrmion: Impact on Current-induced Motion

C. A. Akosa, O. A. Tretiakov, G. Tatara, A. Manchon

Physical Review Letters, 121(9), 2017
Phenomenology of chiral damping in noncentrosymmetric magnets

Akosa, C.A., Miron, I.M., Gaudin, G., Manchon, A.

Physical Review B, 93(21), 2016
Enhanced Nonadiabaticity in Vortex Cores due to the Emergent Hall Effect

Bisig, A., Akosa, C.A., Moon, J.-H., Rhensius, J., Moutafis, C., Von Bieren, A., Heidler, J., Kiliani, G., Kammerer, M., Curcic, M. …

Physical Review Letters, 117(27), 2016
Spin Transport in Ferromagnetic and Antiferromagnetic Textures

Collins Ashu Akosa

2016
Role of spin diffusion in current-induced domain wall motion for disordered ferromagnets

Akosa, C.A., Kim, W.-S., Bisig, A., Kläui, M., Lee, K.-J., Manchon, A.

Physical Review B - Condensed Matter and Materials Physics, 91(9), 2015
Silicene and transition metal based materials: Prediction of a two-dimensional piezomagnet

Dzade, N.Y., Obodo, K.O., Adjokatse, S.K., Ashu, A.C., Amankwah, E., Atiso, C.D., Bello, A.A., Igumbor, E., Nzabarinda, S.B., Obodo, J.T. …

Journal of Physics Condensed Matter, 22(37) 375502-375502, 2010

Research Projects

Theoretical study of transport in solids based on hydrodynamic description

Grants-in-Aid for Scientific Research, Grant-in-Aid for Scientific Research (B), Japan Society for the Promotion of Science, Apr, 2021 - Mar, 2025