Spin-orbit torques in heavy metal/ferrimagnetic insulator bilayers near compensation

被引：12

作者：

Liu, Lin ^{[1
]}

Fan, Ziqi ^{[1
]}

Chen, Zhiren ^{[1
]}

Chen, Zehan ^{[1
]}

Ye, Zhixiang ^{[1
]}

Zheng, Hongnan ^{[1
]}

Zeng, Qi ^{[1
]}

Jia, Wei ^{[1
]}

Li, Shuoqi ^{[1
]}

Wang, Ning ^{[1
]}

Liu, Jing ^{[1
]}

Ma, Lei ^{[1
]}

Lin, Tao ^{[1
]}

Qiu, Mingxia ^{[1
]}

Li, Shunpu ^{[1
]}

Han, Peigang ^{[1
]}

Shi, Ji ^{[2
]}

An, Hongyu ^{[1
]}

机构：

[1] Shenzhen Technol Univ, Coll New Mat & New Energies, Shenzhen 518118, Peoples R China

[2] Tokyo Inst Technol, Sch Mat & Chem Technol, Tokyo 1528552, Japan

来源：

APPLIED PHYSICS LETTERS | 2021年 / 119卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Crystallinity - Energy utilization - Magnetic anisotropy - Magnetic films;

D O I：

10.1063/5.0057741

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Spin-orbit torques (SOTs) in compensated ferrimagnets (FMs) have been widely studied due to their abundant advantages for the application in spintronic devices. Recently, the SOT in FM metals near compensation tuned by composition and temperature has been reported. However, the SOT in FM insulators (FMIs) near compensation still remains elusive. In this work, we report the study of the SOT in FMI near compensation tuned by the temperature. First, Pt/Gd3Fe5O12 (GdIG) bilayer films with high crystallinity and perpendicular magnetic anisotropy were fabricated by magnetron sputtering. Then, the SOT was measured by varying the temperature. It is found that the SOT generation is drastically enhanced close to the compensation temperature, which is verified to be caused by the decrease in the net magnetization. The effective spin Hall angle in Pt/GdIG bilayer films is estimated to be similar to 0.0073, which is almost independent of the temperature. Our study provides a potential approach in emerging FMIs for spintronic devices with low-energy consumption. Published under an exclusive license by AIP Publishing.

引用

页数：5

共 29 条

[1] Fast switching and signature of efficient domain wall motion driven by spin-orbit torques in a perpendicular anisotropy magnetic insulator/Pt bilayer [J].

Avci, Can Onur ;

Rosenberg, Ethan ;

Baumgartner, Manuel ;

Beran, Lukas ;

Quindeau, Andy ;

Gambardella, Pietro ;

Ross, Caroline A. ;

Beach, Geoffrey S. D. .

APPLIED PHYSICS LETTERS, 2017, 111 (07)

[2]

Avci CO, 2017, NAT MATER, V16, P309, DOI [10.1038/nmat4812, 10.1038/NMAT4812]

[3] Perpendicular magnetic anisotropy and spin mixing conductance in polycrystalline europium iron garnet thin films [J].

Bauer, J. J. ;

Rosenberg, E. R. ;

Ross, C. A. .

APPLIED PHYSICS LETTERS, 2019, 114 (05)

[4] Dysprosium Iron Garnet Thin Films with Perpendicular Magnetic Anisotropy on Silicon [J].

Bauer, Jackson J. ;

Rosenberg, Ethan R. ;

Kundu, Subhajit ;

Mkhoyan, K. Andre ;

Quarterman, Patrick ;

Grutter, Alexander J. ;

Kirby, Brian J. ;

Borchers, Julie A. ;

Ross, Caroline A. .

ADVANCED ELECTRONIC MATERIALS, 2020, 6 (01)

[5] Interfacial Dzyaloshinskii-Moriya interaction arising from rare-earth orbital magnetism in insulating magnetic oxides [J].

Caretta, Lucas ;

Rosenberg, Ethan ;

Buttner, Felix ;

Fakhrul, Takian ;

Gargiani, Pierluigi ;

Valvidares, Manuel ;

Chen, Zhen ;

Reddy, Pooja ;

Muller, David A. ;

Ross, Caroline A. ;

Beach, Geoffrey S. D. .

NATURE COMMUNICATIONS, 2020, 11 (01)

[6] Magnetization switching induced by magnetic field and electric current in perpendicular TbIG/Pt bilayers [J].

Chen, Huanjian ;

Cheng, Dashuai ;

Yang, Huanglin ;

Wang, Daike ;

Zhou, Shiming ;

Shi, Zhong ;

Qiu, Xuepeng .

APPLIED PHYSICS LETTERS, 2020, 116 (11)

[7]

Chumak AV, 2015, NAT PHYS, V11, P453, DOI [10.1038/nphys3347, 10.1038/NPHYS3347]

[8] Ferromagnetic resonance of perpendicularly magnetized Tm3Fe5O12/Pt heterostructures [J].

Crossley, S. ;

Quindeau, A. ;

Swartz, A. G. ;

Rosenberg, E. R. ;

Beran, L. ;

Avci, C. O. ;

Hikita, Y. ;

Ross, C. A. ;

Hwang, H. Y. .

APPLIED PHYSICS LETTERS, 2019, 115 (17)

[9] Identifying the origin of the nonmonotonic thickness dependence of spin-orbit torque and interfacial Dzyaloshinskii-Moriya interaction in a ferrimagnetic insulator heterostructure [J].

Ding, Shilei ;

Baldrati, Lorenzo ;

Ross, Andrew ;

Ren, Zengyao ;

Wu, Rui ;

Becker, Sven ;

Yang, Jinbo ;

Jakob, Gerhard ;

Brataas, Arne ;

Klaeui, Mathias .

PHYSICAL REVIEW B, 2020, 102 (05)

[10] Interfacial Dzyaloshinskii-Moriya interaction and chiral magnetic textures in a ferrimagnetic insulator [J].

Ding, Shilei ;

Ross, Andrew ;

Lebrun, Romain ;

Becker, Sven ;

Lee, Kyujoon ;

Boventer, Isabella ;

Das, Souvik ;

Kurokawa, Yuichiro ;

Gupta, Shruti ;

Yang, Jinbo ;

Jakob, Gerhard ;

Klaui, Mathias .

PHYSICAL REVIEW B, 2019, 100 (10)

← 1 2 3 →