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Title: Temperature and magnetic-field dependence of the elastic constants of Ni-Mn-Al magnetic Heusler alloy
Author: Moya Raposo, Xavier
Mañosa, Lluís
Planes Vila, Antoni
Krenke, Thorsten
Acet, Mehmet
Morin, Michel
Zarestky, Jerel L.
Lograsso, T. A.
Keywords: Elasticitat
Transformacions de fase (Física estadística)
Transformacions martensítiques
Issue Date: 2006
Publisher: The American Physical Society
Abstract: We report on measurements of the adiabatic second-order elastic constants of the off-stoichiometric Ni54Mn23Al23 single-crystalline Heusler alloy. The variation in the temperature dependence of the elastic constants has been investigated across the magnetic transition and over a broad temperature range. Anomalies in the temperature behavior of the elastic constants have been found in the vicinity of the magnetic phase transition. Measurements under applied magnetic field, both isothermal and variable temperature, show that the value of the elastic constants depends on magnetic order, thus giving evidence for magnetoelastic coupling in this alloy system.
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It is part of: Physical Review B, 2006, vol. 74, núm. 2, p. 024109-1-024109-6
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física Quàntica i Astrofísica)

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