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Chin. Phys. B, 2014, Vol. 23(10): 106201    DOI: 10.1088/1674-1056/23/10/106201
CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES Prev   Next  

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

Li Shan-Donga b c, Cai Zhi-Yib, Xu Jiea, Cao Xiao-Qinb, Du Hong-Leia, Xue Qiana, Gao Xiao-Yanga, Xie Shi-Minga
a College of Physics Science, Laboratory of Fiber Materials and Modern Textile, the Growing Base for State Key Laboratory, and Key Laboratory of Photonics Materials and Technology in Universities of Shandong, Qingdao University, Qingdao 266071, China;
b College of Physics and Energy, Fujian Normal University, Fuzhou 350007, China;
c National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China
Abstract  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.
Keywords:  uniaxial magnetic anisotropy      oblique sputtering      ferromagnetic resonance      nanocrystalline thin films  
Received:  21 December 2013      Revised:  29 May 2014      Published:  15 October 2014
PACS:  62.25.Fg (High-frequency properties, responses to resonant or transient (time-dependent) fields)  
  75.70.-i (Magnetic properties of thin films, surfaces, and interfaces)  
  75.30.Gw (Magnetic anisotropy)  
  71.55.Ak (Metals, semimetals, and alloys)  
Fund: Project supported by the National Natural Science Foundation of China (Grant No. 11074040), the Key Project of Shandong Provincial Department of Science and Technology, China (Grant No. ZR2012FZ006), and the Fujian Provincial Science Foundation for Distinguished Young Scholars, China (Grant No. 2010J06001).
Corresponding Authors:  Li Shan-Dong     E-mail:  lishd@qdu.edu.cn,_dylsd007@163.com
About author:  62.25.Fg; 75.70.-I; 75.30.Gw; 71.55.Ak

Cite this article: 

Li Shan-Dong, Cai Zhi-Yi, Xu Jie, Cao Xiao-Qin, Du Hong-Lei, Xue Qian, Gao Xiao-Yang, Xie Shi-Ming Enhancement of ferromagnetic resonance in Al2O3-doped Co2FeAl Heusler alloy film prepared by oblique sputtering 2014 Chin. Phys. B 23 106201

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