Exchange bias in flexible freestanding La0.7Sr0.3MnO3/BiFeO3 membranes

Jin, Cai1,2; Zhu, Yuanmin3; Han, Wenqiao1; Liu, Qi1; Hu, Sixia4; Ji, Yanjiang1; Xu, Zedong1; Hu, Songbai1; Ye, Mao1; Chen, Lang1,4

2020-12-21

10.1063/5.0032693

APPLIED PHYSICS LETTERS   影响因子和分区

0003-6951

1077-3118

Exchange bias lies in the core of cutting-edge technologies, for instance, high-density data storage, spin valves, and high-frequency magnetic devices. As the devices with flexibility have become vital in the forefront of technology, the maintenance of exchange bias under high flexion is highly desired. This paper reports the strong exchange bias in flexible freestanding La0.7Sr0.3MnO3/BiFeO3 membranes with decent mechanical durability. The La0.7Sr0.3MnO3 layer is biased strongly by the BiFeO3 layer even in the freestanding state. At the same time, the strain is demonstrated to affect the strength of the exchange bias of the La0.7Sr0.3MnO3/BiFeO3 bilayer. Furthermore, the saturation magnetization and exchange bias field of the freestanding La0.7Sr0.3MnO3/BiFeO3 membranes are preserved well after 1000 bending cycles. Our work on freestanding membranes paves the way for manufacturing advanced flexible spintronic devices.

SCI ; EI

英语

NI论文

第一 ; 通讯

NSFC (National Natural Science Foundation of China)[51972160,11804145] ; Natural Science Foundation of Guangdong Province of China[2018A030310221] ; Science and Technology Research Items of Shenzhen["JCYJ20170412153325679","JCYJ20180504165650580","JCYJ20190809142603695","JCYJ20170817110302672"] ; High-level Special Funding["G02206303","G02206403"] ; Foundation for basic and applied basic research of Guangdong Province[2019A1515110519]

Physics

Physics, Applied

WOS:000603064900002

AMER INST PHYSICS

20210309773304

Bending strength ; Bismuth compounds ; Digital storage ; Iron compounds ; Lanthanum compounds ; Magnetic core storage ; Magnetic devices ; Manganese compounds ; Saturation magnetization

Magnetism: Basic Concepts and Phenomena:701.2 ; Data Storage, Equipment and Techniques:722.1

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
2.Harbin Inst Technol, Sch Phys, Harbin 150081, Peoples R China
3.Southern Univ Sci & Technol, Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, Mat Characterizat & Preparat Ctr, Shenzhen 518055, Peoples R China

Jin, Cai,Zhu, Yuanmin,Han, Wenqiao,et al. Exchange bias in flexible freestanding La0.7Sr0.3MnO3/BiFeO3 membranes[J]. APPLIED PHYSICS LETTERS,2020,117(25).

Jin, Cai.,Zhu, Yuanmin.,Han, Wenqiao.,Liu, Qi.,Hu, Sixia.,...&Chen, Lang.(2020).Exchange bias in flexible freestanding La0.7Sr0.3MnO3/BiFeO3 membranes.APPLIED PHYSICS LETTERS,117(25).

Jin, Cai,et al."Exchange bias in flexible freestanding La0.7Sr0.3MnO3/BiFeO3 membranes".APPLIED PHYSICS LETTERS 117.25(2020).