Paper Title:
Interdiffusion in Fe/Pt Multilayer Thin Films
  Abstract

Interdiffusion in Fe/Pt multilayer thin films has been studied. [Fe(1nm)/Pt(1.5nm)]20 multilayers were prepared by DC magnetron sputtering technique and subsequently annealed at temperatures of 543 - 633K in vacuum lower than 10-6 torr. X-ray diffraction (XRD) studies on these multilayer systems revealed the interdiffusion coefficients from slope of the best straight line fit of first peak intensity versus annealing time. The temperature dependence of interdiffusion in the range of 543 - 633K can be described by D=4.98×10-24 exp (0.88eV/kT) m2S-1. The coercivity, measured by Vibrating Sample Magnetometer, of the multilayer with annealing time at 603K increased, which is believed to the increase of surface roughness by interdiffusion at the interfaces of Fe and Pt multilayers, enhancement of composition gradient; and/or formation of Fe-Pt reaction phase at the interface of Fe and Pt.

  Info
Periodical
Defect and Diffusion Forum (Volumes 258-260)
Edited by
Andreas Öchsner and José Grácio
Pages
199-206
DOI
10.4028/www.scientific.net/DDF.258-260.199
Citation
S. Y. O, D. P. Nguyen, C. G. Lee, B. H. Koo, B. S. Lee, T. Shimozaki, T. Okino, "Interdiffusion in Fe/Pt Multilayer Thin Films", Defect and Diffusion Forum, Vols. 258-260, pp. 199-206, 2006
Online since
October 2006
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