The deterministic field-free magnetization switching of perpendicular ferrimagnetic Tb-Co alloy film induced by interfacial spin current

被引：9
作者：
Guo, Yonghai [1 ]
Wu, Yunzhuo [1 ]
Cao, Yang [1 ]
Zeng, Xiaoxue [1 ]
Wang, Bo [1 ]
Yang, Dezheng [1 ]
Fan, Xiaolong [1 ]
Cao, Jiangwei [1 ]
机构：
[1] Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2021年 / 119卷 / 03期
基金：
中国国家自然科学基金;
关键词：
ORBIT TORQUE; ABSENCE;
D O I：
10.1063/5.0052850
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Current-induced magnetization switching in compensated ferrimagnetic materials by the spin-orbit torque (SOT) effect is promising for the next generation information storage devices. In this work, we report the current-induced deterministic field-free magnetization switching of the perpendicular Tb-Co ferrimagnet layer in a Co/Ti/Tb-Co trilayers. We found that the switching proportion and polarity of the Tb-Co ferrimagnet depend on the magnetization direction of the in-plane Co layer. The switching process revealed by magneto-optical Kerr microscope imaging further confirmed the current-induced field-free switching of the Tb-Co layer. We also demonstrated the large SOT effective field and the perpendicular effective field acting on the Tb-Co layer, by utilizing the second harmonic voltage measurement and the current-induced loop shift method. The large interfacial SOT efficiency and deterministic field-free magnetization switching in the trilayers structure may accelerate the application of ferrimagnet in SOT memory devices. Published under an exclusive license by AIP Publishing.
引用
收藏
页数：6
相关论文
共 48 条
[1]   Interface-Generated Spin Currents [J].
Amin, V. P. ;
Zemen, J. ;
Stiles, M. D. .
PHYSICAL REVIEW LETTERS, 2018, 121 (13)
[2]   Spin transport at interfaces with spin-orbit coupling: Formalism [J].
Amin, V. P. ;
Stiles, M. D. .
PHYSICAL REVIEW B, 2016, 94 (10)
[3]   Interplay of spin-orbit torque and thermoelectric effects in ferromagnet/normal-metal bilayers [J].
Avci, Can Onur ;
Garello, Kevin ;
Gabureac, Mihai ;
Ghosh, Abhijit ;
Fuhrer, Andreas ;
Alvarado, Santos F. ;
Gambardella, Pietro .
PHYSICAL REVIEW B, 2014, 90 (22)
[4]   Spin currents and spin-orbit torques in ferromagnetic trilayers [J].
Baek, Seung-heon C. ;
Amin, Vivek P. ;
Oh, Young-Wan ;
Go, Gyungchoon ;
Lee, Seung-Jae ;
Lee, Geun-Hee ;
Kim, Kab-Jin ;
Stiles, M. D. ;
Park, Byong-Guk ;
Lee, Kyung-Jin .
NATURE MATERIALS, 2018, 17 (06) :509-+
[5]   Antiferromagnetic spintronics [J].
Baltz, V. ;
Manchon, A. ;
Tsoi, M. ;
Moriyama, T. ;
Ono, T. ;
Tserkovnyak, Y. .
REVIEWS OF MODERN PHYSICS, 2018, 90 (01)
[6]   Writing and reading antiferromagnetic Mn2Au by Neel spin-orbit torques and large anisotropic magnetoresistance [J].
Bodnar, S. Yu. ;
Smejkal, L. ;
Turek, I. ;
Jungwirth, T. ;
Gomonay, O. ;
Sinova, J. ;
Sapozhnik, A. A. ;
Elmers, H. -J. ;
Klaui, M. ;
Jourdan, M. .
NATURE COMMUNICATIONS, 2018, 9
[7]   MAGNETIC-PROPERTIES OF AMORPHOUS RARE-EARTH-COBALT ALLOYS [J].
BUSCHOW, KHJ .
JOURNAL OF APPLIED PHYSICS, 1980, 51 (05) :2795-2798
[8]   Spin orbit torques induced magnetization reversal through asymmetric domain wall propagation in Ta/CoFeB/MgO structures [J].
Cao, Jiangwei ;
Chen, Yifei ;
Jin, Tianli ;
Gan, Weiliang ;
Wang, Ying ;
Zheng, Yuqiang ;
Lv, Hua ;
Cardoso, Susana ;
Wei, Dan ;
Lew, Wen Siang .
SCIENTIFIC REPORTS, 2018, 8
[9]   Current-Induced Spin Torques on Single GdFeCo Magnetic Layers [J].
Cespedes-Berrocal, David ;
Damas, Heloise ;
Petit-Watelot, Sebastien ;
Maccariello, Davide ;
Tang, Ping ;
Arriola-Cordova, Aldo ;
Vallobra, Pierre ;
Xu, Yong ;
Bello, Jean-Lois ;
Martin, Elodie ;
Migot, Sylvie ;
Ghanbaja, Jaafar ;
Zhang, Shufeng ;
Hehn, Michel ;
Mangin, Stephane ;
Panagopoulos, Christos ;
Cros, Vincent ;
Fert, Albert ;
Rojas-Sanchez, Juan-Carlos .
ADVANCED MATERIALS, 2021, 33 (12)
[10]   A β-Ta system for current induced magnetic switching in the absence of external magnetic field [J].
Chen, Wenzhe ;
Qian, Lijuan ;
Xiao, Gang .
AIP ADVANCES, 2018, 8 (05)
12345