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	Structure and magnetic properties of Fe-Cr-N sputter-deposited films
	Peng, D. L. ; Konno, T. J. ; Sumiyama, K. ; Onodera, H. ; Suzuki, K. ; Peng DL(彭栋梁)
	1997
关键词	perpendicular magnetic anisotropy Fe-Cr-N film sputter-deposition structure and morphology Mossbauer effect
英文摘要	Structure and magnetic properties of Fe-Cr-N ternary films prepared by DC magnetron facing-target sputtering have been investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), vibrating sample magnetometry (VSM) and Mossbauer effect. These films exhibit perpendicular magnetic anisotropy. We found that N-2-to-Ar flow ratio, Fe-Cr target area ratio and substrate temperature during film preparation are the factors influencing the anisotropy. Adjusting the chemical composition and deposition parameters, we obtained saturation magnetization of 300-400 emu/cm(3) acid perpendicular coercivity of 800-1100 Oe. XRD measurements show that the films generally consist of the alpha-Fe(Cr) and gamma'-(Fe,Cr)(4)N-x(x < 1) phases, and that the enhancement of perpendicular anisotropy is always accompanied by a decrease in the grain size of alpha-Fe(Cr) phase and growth of the gamma'-(Fe,Cr)(4)N-x phase with a pronounced (200) texture. The Mossbauer spectra show that the gamma'-(Fe,Cr)(4)N-x phase is nonmagnetic at room temperature. Using the SEM and TEM, we found that the nonmagnetic gamma'-(Fe,Cr)(4)N-x phase displays columnar growth and that the small ferromagnetic alpha-Fe(Cr) grains of about 2-20 nm in diameter are located at grain boundaries of gamma'-(Fe,Cr)(4)N-x grains. Shape anisotropy seems to play an important part in the perpendicular magnetic anisotropy in these Fe-Cr-N films.
语种	英语
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/59419]
专题	材料学院－已发表论文
推荐引用方式 GB/T 7714	Peng, D. L.,Konno, T. J.,Sumiyama, K.,et al. Structure and magnetic properties of Fe-Cr-N sputter-deposited films[J],1997.
APA	Peng, D. L.,Konno, T. J.,Sumiyama, K.,Onodera, H.,Suzuki, K.,&彭栋梁.(1997).Structure and magnetic properties of Fe-Cr-N sputter-deposited films..
MLA	Peng, D. L.,et al."Structure and magnetic properties of Fe-Cr-N sputter-deposited films".(1997).

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