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Role of orbital hybridization in anisotropic magnetoresistance

Authors
Ko, Hye-WonPark, Hyeon-JongGo, GyungchoonOh, Jung HyunKim, Kyoung-WhanLee, Kyung-Jin
Issue Date
12-5월-2020
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.101, no.18
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW B
Volume
101
Number
18
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/56012
DOI
10.1103/PhysRevB.101.184413
ISSN
2469-9950
Abstract
We theoretically and numerically show that longitudinal orbital currents in ferromagnets depend on the magnetization direction, which contribute to the anisotropic magnetoresistance (AMR). This orbital contribution to AMR arises from the momentum-dependent orbital splitting, which is generally present in multiorbital systems through the orbital anisotropy and the orbital hybridization. We highlight the latter orbital hybridization as an unrecognized origin of AMR and also as a common origin of AMR and orbital Hall effect.
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