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

Journal Article · Wed Jul 15 00:00:00 EDT 2015 · Scripta Materialia

DOI:https://doi.org/10.1016/j.scriptamat.2015.02.031· OSTI ID:1211097

Liu, JX; Barmak, K

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.

• Sponsoring Organization: USDOE Advanced Research Projects Agency - Energy (ARPA-E)
• OSTI ID: 1211097
• Journal Information: Scripta Materialia, Vol. 104; ISSN 1359-6462
• Country of Publication: United States
• Language: English