Journal article
Magnetocaloric effect in Ni-Mn-Ga thin films under concurrent magnetostructural and Curie transitions
Abstract
An investigation of the magnetocaloric effect for Ni-Mn-Ga films with a composition chosen to yield the highly advantageous magnetostructural phase transition between the paramagnetic austenitic and the ferromagnetic martensitic phases is presented. The observed effect is particularly strong at low magnetic fields, yielding a maximum negative entropy change of −1.4 J/kg K for a field change of only 0.5 T. It is also observed that the cooling …
Authors
Zhang Y; Hughes RA; Britten JF; Dube PA; Preston JS; Botton GA; Niewczas M
Journal
Journal of Applied Physics, Vol. 110, No. 1,
Publisher
AIP Publishing
Publication Date
July 1, 2011
DOI
10.1063/1.3602088
ISSN
0021-8979