TY  - JOUR
AU  - Shen, Lvkang
AU  - Lan, Guohua
AU  - Lu, Lu
AU  - Ma, Chunrui
AU  - Cao, Cuimei
AU  - Jiang, Changjun
AU  - Fu, Huarui
AU  - You, Caiyin
AU  - Lu, Xiaoli
AU  - Yang, Yaodong
AU  - Chen, Lang
AU  - Liu, Ming
AU  - Jia, Chun-Lin
TI  - A Strategy to Modulate the Bending Coupled Microwave Magnetism in Nanoscale Epitaxial Lithium Ferrite for Flexible Spintronic Devices
JO  - Advanced science
VL  - 5
IS  - 12
SN  - 2198-3844
CY  - Weinheim
PB  - Wiley-VCH
M1  - FZJ-2019-01066
SP  - 1800855 -
PY  - 2018
AB  - With the development of flexible electronics, the mechanical flexibility of functional materials is becoming one of the most important factors that needs to be considered in materials selection. Recently, flexible epitaxial nanoscale magnetic materials have attracted increasing attention for flexible spintronics. However, the knowledge of the bending coupled dynamic magnetic properties is poor when integrating the materials in flexible devices, which calls for further quantitative analysis. Herein, a series of epitaxial LiFe5O8 (LFO) nanostructures are produced as research models, whose dynamic magnetic properties are characterized by ferromagnetic resonance (FMR) measurements. LFO films with different crystalline orientations are discussed to determine the influence from magnetocrystalline anisotropy. Moreover, LFO nanopillar arrays are grown on flexible substrates to reveal the contribution from the nanoscale morphology. It reveals that the bending tunability of the FMR spectra highly depends on the demagnetization field energy of the sample, which is decided by the magnetism and the shape factor in the nanostructure. Following this result, LFO film with high bending tunability of microwave magnetic properties, and LFO nanopillar arrays with stable properties under bending are obtained. This work shows guiding significances for the design of future flexible tunable/stable microwave magnetic devices.
LB  - PUB:(DE-HGF)16
C6  - pmid:30581700
UR  - <Go to ISI:>//WOS:000453685900026
DO  - DOI:10.1002/advs.201800855
UR  - https://juser.fz-juelich.de/record/860291
ER  -