Structure and magnetic anisotropy studies on Co/W bilayers

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WU Xiao-Shan, ZHANG Ai-Mei, YIU Biao, HU An and WU Zong-Hua. Structure and magnetic anisotropy studies on Co/W bilayers[J]. Chinese Physics C, 2005, 29(S1): 28-31.
WU Xiao-Shan, ZHANG Ai-Mei, YIU Biao, HU An and WU Zong-Hua. Structure and magnetic anisotropy studies on Co/W bilayers[J]. Chinese Physics C, 2005, 29(S1): 28-31. shu
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Received: 2005-10-28
Revised: 1900-01-01
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Structure and magnetic anisotropy studies on Co/W bilayers

    Corresponding author: WU Xiao-Shan,
  • Lab of Solid State Microstructures, Center for Advanced Studies in Science and Technology of Microstructures, Department of Physics, Nanjing University, Nanjing 210093, China2 BSRF, Institute of High Energy Physics, CAS, Beijing 100049, China

Abstract: Three sets of Co/W bilayers with varying Co and/or W layer thickness were prepared by d.c. magnetosputtering technique. The magnetic properties of Co/W bilayers have been investigated using ferromagnetic resonance (FMR) and vibrating sample magnetomete.Specular X-ray reflectivity and high angle X-ray diffraction were used to characterize the structure of the deposited samples. The saturation magnetization of Co increased with Co thickness but was smaller than that of bulk hcp Co. The larger interface roughness and FMR line-width for the thinner Co/W films indicate the inhomogeneity of Co and/or W layers.

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