Journal article
Magnetoresistance and its relation to magnetization in Ni₅₀Mn₃₅Sn₁₅ shape-memory epitaxial films
Publication Details
Authors: | Dubowik, J.; Załȩski, K.; Gościańska, I.; Głowiński, H.; Ehresmann, A. |
Publication year: | 2012 |
Journal: | Applied Physics Letters |
Pages range : | 162403 |
Journal acronym: | Appl. Phys. Lett. |
Volume number: | 100 |
ISSN: | 0003-6951 |
DOI-Link der Erstveröffentlichung: |
URN / URL: |
Abstract
The magnetoresistance (MR) of Heusler alloy Ni50Mn35Sn15 epitaxial films on MgO substrates is studied as a function of temperature T and magnetic field H. The large negative MR extends over martensitic transformation with maximum of -22% at 110 K. In martensitic and austenitic phase, the MR is -3% and -5%, respectively. We show that the MR is governed mainly by magnetization paraprocess at high magnetic fields and scales as the square of magnetization Δm(H,T)2.
The magnetoresistance (MR) of Heusler alloy Ni50Mn35Sn15 epitaxial films on MgO substrates is studied as a function of temperature T and magnetic field H. The large negative MR extends over martensitic transformation with maximum of -22% at 110 K. In martensitic and austenitic phase, the MR is -3% and -5%, respectively. We show that the MR is governed mainly by magnetization paraprocess at high magnetic fields and scales as the square of magnetization Δm(H,T)2.
