Method for measurement of diffusivity: Calorimetric studies of Fe/Ni multilayer thin films

SCRIPTA MATERIALIA

卷:104

Article

Liu, Jiaxing¹  Barmak, Katayun¹ 

[1] Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA

关键词: Differential scanning calorimetry;    Diffusion;    Fe-Ni;    Thin films;   

DOI  :  10.1016/j.scriptamat.2015.02.031

来源: Elsevier

【 摘 要 】

A calorimetric method for the measurement of diffusivity in thin film multilayers is introduced and applied to the Fe Ni system. Using this method, the diffusivity in [Fe (25 nm)/Ni (25 nm)](20) multilayer thin films is measured as 4 x 10(-3)exp(-1.6 +/- 0.1 eV/ k(B)T) cm(2)/s, respectively. The diffusion mechanism in the multilayers and its relevance to laboratory synthesis of L1(0) ordered FeNi are discussed. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

【 授权许可】

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