Room-temperature electric control of exchange bias effect in CoO1-δ/Co films using Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (110) substrates

• 作者: Chang-Sheng Wang Jin-Bo Yang Jing-Zhi Han Rui Wu Shun-Quan Liu Wen-Yun Yang Xin Wen
• 来源期刊: 中国物理B（英文版）
• 年，卷（期）: 2020,（9）
• 所属期刊栏目: INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY
• 页码范围: 636-641
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/aba611

摘要

Significant electric control of exchange bias effect in a simple CoO1-δ/Co system,grown on piezoelectric Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (110) (PMN-PT) substrates,is achieved at room temperature.Obvious changes in both the coercivity field (Hc) and the exchange bias field (HE),of 31％ and 5％,respectively,have been observed when the electric field is applied to the substrate.While the change of coercivity is related to the enhanced uniaxial anisotropy in the ferromagnetic layer,the change of the exchange bias field can only originate from the spin reorientation in the antiferromagnetic CoO1-δ layer caused by the strain-induced magnetoelastic effect.A large HE/Hc ＞ 2,and HE ～ 110 Oe at room temperature,as well as the low-energy fabrication of this system,make it a practical system for spintronic device applications.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Xin Wen		1	0	0.0	0.0
2	Rui Wu		1	0	0.0	0.0
3	Wen-Yun Yang		1	0	0.0	0.0
4	Chang-Sheng Wang		1	0	0.0	0.0
5	Shun-Quan Liu		1	0	0.0	0.0
6	Jing-Zhi Han		1	0	0.0	0.0
7	Jin-Bo Yang		1	0	0.0	0.0