Calorimetric evidence of asymmetry in the nucleation of CuMg<inf>2</inf> in Cu/Mg multilayers

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Abstract

We report the observation of temperature-dependent nucleation and lateral growth behavior of the intermediate product phase CuMg2 in Cu/Mg multilayers depending if the interface is Mg on Cu or Cu on Mg. The addition of an intermediate Fe layer inhibiting CuMg2 nucleation on one of the Cu/Mg interfaces demonstrates the important role of the nature of the interface on the nucleation events of the intermediate phase. This unexpected behavior is related to the mode of growth of the thin films. A kinetic model with independent nucleation and lateral growth stages at each interface is used to fit the calorimetric curves. © 2004 The American Physical Society.
Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume69
Issue number11
DOIs
Publication statusPublished - 29 Mar 2004

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