TY  - JOUR
AU  - Zhang, Yong
AU  - Shen, Lvkang
AU  - Liu, Ming
AU  - Li, Xin
AU  - Lu, Xiaoli
AU  - Lu, Lu
AU  - Ma, Chunrui
AU  - You, Caiyin
AU  - Chen, Aiping
AU  - Huang, Chuanwei
AU  - Chen, Lang
AU  - Alexe, Marin
AU  - Jia, Chun-Lin
TI  - Flexible Quasi-Two-Dimensional CoFe 2 O 4 Epitaxial Thin Films for Continuous Strain Tuning of Magnetic Properties
JO  - ACS nano
VL  - 11
IS  - 8
SN  - 1936-086X
CY  - Washington, DC
PB  - Soc.
M1  - FZJ-2017-06693
SP  - 8002 - 8009
PY  - 2017
AB  - Epitaxial thin films of CoFe2O4 (CFO) have successfully been transferred from a SrTiO3 substrate onto a flexible polyimide substrate. By bending the flexible polyimide, different levels of uniaxial strain are continuously introduced into the CFO epitaxial thin films. Unlike traditional epitaxial strain induced by substrates, the strain from bending will not suffer from critical thickness limitation, crystalline quality variation, and substrate clamping, and more importantly, it provides a more intrinsic and reliable way to study strain-controlled behaviors in functional oxide systems. It is found that both the saturation magnetization and coercivity of the transferred films can be changed over the bending status and show a high accord with the movement of the curvature bending radius of the polyimide substrate. This reveals that the mechanical strain plays a critical role in tuning the magnetic properties of CFO thin films parallel and perpendicular to the film plane direction.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000408520900049
DO  - DOI:10.1021/acsnano.7b02637
UR  - https://juser.fz-juelich.de/record/837923
ER  -