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@MISC{Gao:1019939,
author = {Gao, Tenghua and Rüßmann, Philipp and Wang, Qianwen and
Hayashi, Hiroki and Go, Dongwook and Zhang, Song and
Harumoto, Takashi and Tu, Rong and Zhang, Lianmeng and
Mokrousov, Yuriy and Shi, Ji and Ando, Kazuya},
title = {{DFT} calculations of the electronic structure of {C}o{P}t
in {L}1₁ and {A}1 structures},
publisher = {Materials Cloud},
reportid = {FZJ-2023-05760},
year = {2023},
abstract = {Spintronics applications for high-density non-volatile
memories require simultaneous optimization of the
perpendicular magnetic anisotropy (PMA) and current-induced
magnetization switching. These properties determine,
respectively, the thermal stability of a ferromagnetic
memory cell and a low operation power consumption, which are
mutually incompatible with the spin transfer torque as the
driving force for the switching. Here, we demonstrate a
strategy of alloy engineering to overcome this obstacle by
using electrically induced orbital currents instead of spin
currents. A non-equilibrium orbital density generated in
paramagnetic γ-FeMn flows into CoPt coupled to the
magnetization through spin-orbit interaction, ultimately
creating an orbital torque. Controlling the atomic
arrangement of Pt and Co by structural phase transition, we
show that the propagation length of the transferred angular
momentum can be modified concurrently with the PMA strength.
We find a strong correlation to the phase transition-induced
changes of d orbitals with mₗ = ±1 and mₗ = ±2
character. The close link of orbital hybridization to the
dynamic orbital response and magnetic properties offers new
possibilities to realize optimally designed orbitronics
memory and logic applications.This dataset contains the DFT
calculations for the electronic structure of CoPt in L1₁
and A1 structures that are discussed the corresponding
publication.},
keywords = {density-functional theory (Other) / Orbital torque (Other)
/ orbitronics (Other)},
cin = {IAS-1 / PGI-1},
cid = {I:(DE-Juel1)IAS-1-20090406 / I:(DE-Juel1)PGI-1-20110106},
pnm = {5211 - Topological Matter (POF4-521) / DFG project
390534769 - EXC 2004: Materie und Licht für
Quanteninformation (ML4Q) (390534769)},
pid = {G:(DE-HGF)POF4-5211 / G:(GEPRIS)390534769},
typ = {PUB:(DE-HGF)32},
doi = {10.24435/materialscloud:vy-yg},
url = {https://juser.fz-juelich.de/record/1019939},
}