Deviation of the magnetization change from the structural phase transition temperature in polycrystalline Ni-Mn-Sn in low magnetic fields Academic Article

abstract

• Magnetization and resistivity were measured as a function of temperature in polycrystalline Ni-Mn-Sn Heusler alloys with a magnetocrystalline first order phase transition. At external magnetic fields <0.2 T the magnetization change associated with the phase transition happened at a temperature up to 5 K lower than the true phase transition temperature measured by electrical resistivity or predicted by thermodynamic theory. We associate this anomaly with magnetic exchange coupling between austenite and martensite phases coexisting near the transition. 2010 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

authors

• Shamberger, Patrick

published proceedings

• SCRIPTA MATERIALIA

author list (cited authors)

• Shamberger, P. J., Pakhomov, A. B., Koyama, K., & Ohuchi, F. S.

citation count

• 3

complete list of authors

• Shamberger, PJ||Pakhomov, AB||Koyama, K||Ohuchi, FS

publication date

• January 2010

publisher

• Elsevier  Publisher

published in

• Scripta Materialia  Journal

keywords

• Exchange Coupling
• Heusler Phases
• Magnetic Properties
• Martensitic Phase Transformation

Digital Object Identifier (DOI)

• 10.1016/j.scriptamat.2010.08.017

start page

• 1161

end page

• 1164

volume

• 63

issue

• 12

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scriptamat.2010.08.017