4.5 Article

Enhancement of ferromagnetic resonance in Al2O3-doped Co2FeAl Heusler alloy film prepared by oblique sputtering

Journal

CHINESE PHYSICS B
Volume 23, Issue 10, Pages -

Publisher

IOP PUBLISHING LTD
DOI: 10.1088/1674-1056/23/10/106201

Keywords

uniaxial magnetic anisotropy; oblique sputtering; ferromagnetic resonance; nanocrystalline thin films

Funding

  1. National Natural Science Foundation of China [11074040]
  2. Key Project of Shandong Provincial Department of Science and Technology, China [ZR2012FZ006]
  3. Fujian Provincial Science Foundation for Distinguished Young Scholars, China [2010J06001]

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Large and variable in-plane uniaxial magnetic anisotropy in a nanocrystalline (Co2FeAl)(97.8)(Al2O3)(2.2) soft magnetic thin film is obtained by an oblique sputtering method without being induced by magnetic field or post annealing. The in-plane uniaxial magnetic anisotropy varies from 50 Oe to 180 Oe (1 Oe = 79.5775 A.m(-1)) by adjusting the sample's position. As a result, the ferromagnetic resonance frequency of the film increases from 1.9 GHz to 3.75 GHz.

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