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Magnetic Property Enhancement of CO0.85W0.15 Magnetic Films by Addition of Vanadium in Ru Buffer Layer
Alternative TitleMagnetic Property Enhancement of Co0.85W0.15 Magnetic Films by Addition of Vanadium in Ru Buffer Layer
Wang Jianjun; Gao Chong; Ye Fan; Liu Chunming
2014
Source PublicationRARE METAL MATERIALS AND ENGINEERING
ISSN1002-185X
Volume43Issue:6Pages:1319-1323
AbstractHigh magnetic anisotropy energy (MAE) is desirable for perpendicular magnetic recording. In order to improve the MAE, a trial of crystal deformation induced by changes of buffer layer compositions was taken. The Co0.85W0.15 magnetic thin films were deposited at 300 degrees C on RuV buffer layers by DC magnetron sputtering, with 15%V introduced into Ru films. The elaborate crystal structures of the films were examined by X-ray diffraction (XRD). With the results of XRD measurements, the crystal structure, the epitaxial relationship, the lattice parameters, the mosaic spread of the c-axis, the volume ratio of fcc to hcp phases and the stacking fault densities were determined. The correlation of crystal structure and MAE was investigated for Co0.85W0.15/Ru0.85V0.85/MgO(111) films. The experimental results show that the magnetic anisotropy K-u of Co0.85W0.15 films is significantly enhanced with the reduction of c/a, owing to the addition of V in Ru buffer layers. It seems possible to control the magnetic anisotropy of various materials by designing the buffer layer.
Other AbstractHigh magnetic anisotropy energy (MAE) is desirable for perpendicular magnetic recording. In order to improve the MAE, a trial of crystal deformation induced by changes of buffer layer compositions was taken. The Co_(0.85)W_(0.15) magnetic thin films were deposited at 300 °C on RuV buffer layers by DC magnetron sputtering, with 15%V introduced into Ru films. The elaborate crystal structures of the films were examined by X-ray diffraction (XRD). With the results of XRD measurements, the crystal structure, the epitaxial relationship, the lattice parameters, the mosaic spread of the c-axis, the volume ratio of fcc to hcp phases and the stacking fault densities were determined. The correlation of crystal structure and MAE was investigated for Co_(0.85)W_(0.15)/Ru_(0.85)V_(0.85)/MgO(l 11) films. The experimental results show that the magnetic anisotropy Ku of C00.85W0.15 films is significantly enhanced with the reduction of c/a, owing to the addition of V in Ru buffer layers. It seems possible to control the magnetic anisotropy of various materials by designing the buffer layer.
KeywordRECORDING MEDIA THIN-FILMS ANISOTROPY CO Co-W magnetic film DC magnetron sputtering lattice constant ratio magnetic anisotropy energy (MAE)
Indexed ByCSCD
Language英语
Funding Project[National Natural Science Foundation of China] ; [Fundamental Research Funds for the Central Universities] ; [Scientific Research Foundation for Returned Scholars, Ministry of Education of China]
CSCD IDCSCD:5173203
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/144369
Collection中国科学院金属研究所
Affiliation中国科学院金属研究所
Recommended Citation
GB/T 7714
Wang Jianjun,Gao Chong,Ye Fan,et al. Magnetic Property Enhancement of CO0.85W0.15 Magnetic Films by Addition of Vanadium in Ru Buffer Layer[J]. RARE METAL MATERIALS AND ENGINEERING,2014,43(6):1319-1323.
APA Wang Jianjun,Gao Chong,Ye Fan,&Liu Chunming.(2014).Magnetic Property Enhancement of CO0.85W0.15 Magnetic Films by Addition of Vanadium in Ru Buffer Layer.RARE METAL MATERIALS AND ENGINEERING,43(6),1319-1323.
MLA Wang Jianjun,et al."Magnetic Property Enhancement of CO0.85W0.15 Magnetic Films by Addition of Vanadium in Ru Buffer Layer".RARE METAL MATERIALS AND ENGINEERING 43.6(2014):1319-1323.
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