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Title: Spin orientation driven static and dynamic magnetic process in amorphous FeCoBSi thin films

The spin orientation dependence of magnetic hysteresis and microwave ferromagnetic resonance data are investigated in FeCoBSi amorphous thin films. Demagnetization effect allows the weak interface-rooted out-of-plane anisotropy to build up local spin orientation domains under the dominant in-plane anisotropy. As a result, two phase magnetization reversal and double-peak ferromagnetic resonance traces with varying damping behavior are observed. Due to the distribution of in-plane and out-of-plane spin orientations, the ferromagnetic resonance bandwidth has been extensively expanded with the full width at half maximum increased from 1.2 GHz to 3.5 GHz.
Authors:
; ; ; ; ;  [1]
  1. State Key Laboratory of Electronic Thin Film and Integrated Devices, National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China, Chengdu 610054 (China)
Publication Date:
OSTI Identifier:
22412862
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 21; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; COBALT SILICIDES; DAMPING; DEMAGNETIZATION; FERROMAGNETIC RESONANCE; GHZ RANGE; HYSTERESIS; INTERFACES; IRON BORIDES; MAGNETIC FIELD REVERSAL; MAGNETIZATION; MICROWAVE RADIATION; SPIN ORIENTATION; THIN FILMS