Sign Change of Spin-Orbit Torque in Pt/NiO/CoFeB Structures

被引：18

作者：

Zhu, Dapeng ^{[1
,2
]}

Zhang, Tianrui ^{[1
]}

Fu, Xiao ^{[1
,2
]}

Hao, Runrun ^{[1
,2
]}

Hamzic, Amir ^{[1
,3
]}

Yang, Huaiwen ^{[1
,2
]}

Zhang, Xueying ^{[1
,2
]}

Zhang, Hui ^{[1
]}

Du, Ao ^{[1
]}

Xiong, Danrong ^{[1
]}

Shi, Kewen ^{[1
]}

Yan, Shishen ^{[4
]}

Zhang, Shufeng ^{[5
]}

Fert, Albert ^{[1
,6
]}

Zhao, Weisheng ^{[1
,2
]}

机构：

[1] Beihang Univ, Fert Beijing Inst, MIIT Key Lab Spintron, Sch Integrated Circuit Sci & Engn, Beijing 100191, Peoples R China

[2] Beihang Univ, Qingdao Res Inst, Beihang Goertek Joint Microelect Inst, Qingdao 266000, Peoples R China

[3] Univ Zagreb, Dept Phys, Fac Sci, HR-10001 Zagreb, Croatia

[4] Shandong Univ, Sch Phys, State Key Lab Crystal Mat, Jinan 250100, Peoples R China

[5] Univ Arizona, Dept Phys, Tucson, AZ 85721 USA

[6] Univ Paris Saclay, CNRS, Thales, Unite Mixte Phys, F-91767 Palaiseau, France

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 128卷 / 21期

基金：

中国国家自然科学基金;

关键词：

EXCHANGE BIAS; ANTIFERROMAGNET; MAGNITUDE;

D O I：

10.1103/PhysRevLett.128.217702

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Antiferromagnetic insulators have recently been proved to support spin current efficiently. Here, we report the dampinglike spin-orbit torque (SOT) in Pt/NiO/CoFeB has a strong temperature dependence and reverses the sign below certain temperatures, which is different from the slight variation with temperature in the Pt/CoFeB bilayer. The negative dampinglike SOT at low temperatures is proposed to be mediated by the magnetic interactions that tie with the ???exchange bias??? in Pt/NiO/CoFeB, in contrast to the thermal-magnon-mediated scenario at high temperatures. Our results highlight the promise to control the SOT through tuning the magnetic structure in multilayers.

引用

页数：6

共 50 条

[1] Process gas dependence of spin-orbit torque in Pt/NiO/Co structures
Morita, T.
Koyama, T.
Chiba, D.
[J]. APPLIED PHYSICS LETTERS, 2023, 122 (26)
[2] Observation of Thermal Spin-Orbit Torque in W/CoFeB/MgO Structures
Kim, Jeong-Mok
Kim, Dong-Jun
Cheon, Cheol-Yeon
Moon, Kyoung-Woong
Kim, Changsoo
Phuoc Cao Van
Jeong, Jong-Ryul
Hwang, Chanyong
Lee, Kyung-Jin
Park, Byong-Guk
[J]. NANO LETTERS, 2020, 20 (11) : 7803 - 7810
[3] Enhancing the spin-orbit torque efficiency in Pt/CoFeB/Pt based perpendicularly magnetized system
Kayal, Soubhik
Maji, Saikat
Mukhopadhyay, Ankan
Kumar, P. S. Anil
[J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2022, 558
[4] Composition dependence of spin-orbit torque in Pt1-xMnx/CoFeB heterostructures
Vihanga De Zoysa, K.
Duttagupta, Samik
Itoh, Ryuichi
Takeuchi, Yutaro
Ohno, Hideo
Fukami, Shunsuke
[J]. Applied Physics Letters, 2020, 117 (01):
[5] Composition dependence of spin-orbit torque in Pt1-xMnx/CoFeB heterostructures
De Zoysa, K. Vihanga
DuttaGupta, Samik
Itoh, Ryuichi
Takeuchi, Yutaro
Ohno, Hideo
Fukami, Shunsuke
[J]. APPLIED PHYSICS LETTERS, 2020, 117 (01)
[6] Enhanced spin-orbit torque via interface engineering in Pt/CoFeB/MgO heterostructures
Lee, Hae-Yeon
Kim, Sanghoon
Park, June-Young
Oh, Young-Wan
Park, Seung-Young
Ham, Wooseung
Kotani, Yoshinori
Nakamura, Tetsuya
Suzuki, Motohiro
Ono, Teruo
Lee, Kyung-Jin
Park, Byong-Guk
[J]. APL MATERIALS, 2019, 7 (03):
[7] Tunable spin-orbit torque switching in antiferromagnetically coupled CoFeB/Ta/CoFeB
Zhang, R. Q.
Shi, G. Y.
Su, J.
Shang, Y. X.
Cai, J. W.
Liao, L. Y.
Pan, F.
Song, C.
[J]. APPLIED PHYSICS LETTERS, 2020, 117 (21)
[8] Optical detection of spin-orbit torque in Ta/CoFeB and W/CoFeB bilayers
Kim, Sumin
Kong, Byung Kwon
Kim, Tae Wook
Choi, Gyung-Min
[J]. CURRENT APPLIED PHYSICS, 2024, 61 : 1 - 6
[9] Large spin Hall magnetoresistance and its correlation to the spin-orbit torque in W/CoFeB/MgO structures
Cho, Soonha
Baek, Seung-heon Chris
Lee, Kyeong-Dong
Jo, Younghun
Park, Byong-Guk
[J]. SCIENTIFIC REPORTS, 2015, 5
[10] Large spin Hall magnetoresistance and its correlation to the spin-orbit torque in W/CoFeB/MgO structures
Soonha Cho
Seung-heon Chris Baek
Kyeong-Dong Lee
Younghun Jo
Byong-Guk Park
[J]. Scientific Reports, 5

← 1 2 3 4 5 →