Acta Metall Sin  1997, Vol. 33 Issue (7): 749-755    DOI:

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MAGNETIC,MAGNETO-OPTICAL PROPERTIES AND THERMAL STABILITY OF Tb/Co MULTILAYER FILMS

ZOU Zhiqiang;LI Ming;JIANG ZhihonK;LUO Caiqing; SHEN Defang (Shanghai Institute of Metallurgy; Chinese Academy of Sciences; Shanghai 200050)

ZOU Zhiqiang;LI Ming;JIANG ZhihonK;LUO Caiqing; SHEN Defang (Shanghai Institute of Metallurgy; Chinese Academy of Sciences; Shanghai 200050). MAGNETIC,MAGNETO-OPTICAL PROPERTIES AND THERMAL STABILITY OF Tb/Co MULTILAYER FILMS. Acta Metall Sin, 1997, 33(7): 749-755.

Abstract References Related Articles Recommended Metrics Download:  PDF(661KB)  Export:  BibTeX | EndNote (RIS)       Abstract  Tb/Co thin films with an artificially layered structure are prepared by a dc magnetron-sputtering system. The form of the compositionally modulated structure is dependent on the deposition rates of Tb and Co targets, and the rotation speed of substrate. The layer-thickness dependence of Kerr rotation hysteresis loops was studied. The results show that the films have large pefpendicular uniaxial anisotropy, large coercivity and large Kerr rotation when the period of Tb/Co film is small. These magnetic properties decrease when the period of Tb/Co film is large. The mechanism can be interpreted in terms of the single-ion anisotropy of Tb ions in the interface, and the ferrimagnetic coupling between Tb and Co atoms. The isothermal annealing of Tb/Co multilayer films at 300 oC shows that it has a bad thermal stability. Key words:  Tb/Co compositionally modulated film      perpendicular anisotropypeerr rotation angle      thermal stability      Received:  18 July 1997      Service E-mail this article Add to citation manager E-mail Alert RSS （） Articles by authors URL:  https://www.ams.org.cn/EN/     OR     https://www.ams.org.cn/EN/Y1997/V33/I7/749 1KrishnanR,Cagan V,PorteM,TessierM.J Magn Magn Mater,1990;83:65 2 Sato N,HabuK.JApdPhyS,1987;61:4287Sato N, Habu K, Oyama T. IEEE Trans Mop, 1987; MAG23: 2614 3 SatoN.J Appl Phys,1986;59:2514 4Shan Z S, Sellmyer D J. J Appl Phys, 1999; 67: 5713 Shan Z S, Sellmyer D J. J Appl Phys, 1988; 64. 5745 5 Wang Y J, Kleemann W. Phys Rev, 1991, B44: 5132 6 Shen D F, Jin L N, Yu X Y, Wang L J. J Rare Earths, 1992; 4: 288 7 Morishita T, Togami Y, Tsushima K. J Phys Soc Jpe, 1985; 54. 37 8 Landau L D, Lifshitz E M. Electrodynamics of Continous Medta. London: Pergamon, 1984: 3319 Zwingnan R, Wilson W L, Bourne H C. 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