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Title: Premartensitic and martensitic phase transition in ferromagnetic Ni2MnGa
Author: Gonzàlez Comas, Alfons
Obradó Llauradó, Eduard
Mañosa, Lluís
Planes Vila, Antoni
Chernenko, V. A.
Hattink, Bart Jan
Labarta, Amílcar
Keywords: Transformacions martensítiques
Materials ferromagnètics
Martensitic transformations
Ferromagnetic materials
Issue Date: 1999
Publisher: The American Physical Society
Abstract: We present an experimental study of the premartensitic and martensitic phase transitions in a Ni2MnGa single crystal by using ultrasonic techniques. The effect of applied magnetic field and uniaxial compressive stress has been investigated. It has been found that they substantially modify the elastic and magnetic behavior of the alloy. These experimental findings are a consequence of magnetoelastic effects. The measured magnetic and vibrational behavior agrees with the predictions of a recently proposed Landau-type model [A. Planes et al., Phys. Rev. Lett. 79, 3926 (1997)] that incorporates a magnetoelastic coupling as a key ingredient.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review B, 1999, vol. 60, núm. 10, p. 7085-7090
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ISSN: 0163-1829
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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