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Switching-current shift in spin Hall effect with perpendicular magnetic field

Authors
Kim, DongseukKim, BumjinKim, JiminYun, Chang-JinHwang, ChanyongLee, B. C.Joo, SungjungRhie, K.
Issue Date
25-7월-2019
Publisher
AMER PHYSICAL SOC
Citation
PHYSICAL REVIEW B, v.100, no.1
Indexed
SCIE
SCOPUS
Journal Title
PHYSICAL REVIEW B
Volume
100
Number
1
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/64061
DOI
10.1103/PhysRevB.100.014433
ISSN
2469-9950
Abstract
The spin Hall torque induced by DC current was studied experimentally. A Pt/Co/Pt structure with perpendicular magnetic anisotropy was grown, and magnetization reversal due to the spin Hall effect was observed. An extra magnetic field perpendicular to the sample was applied in addition to a constant bias field. It was found that the switching current shifted in proportion to the additional perpendicular field. The spin Hall angle was estimated from this relation, and the small perpendicular magnetic field can be measured accurately based on this effect.
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Rhie, Kung won
과학기술대학 (디스플레이·반도체물리학부 반도체물리전공)
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