Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 15, Issue 22, Pages 3831-3839Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/15/22/317
Keywords
-
Categories
Ask authors/readers for more resources
The effect of atomic order on the martensitic phase transition and magnetic properties of stoichiometric Ni2MnGa has been investigated in a sample quenched from 1000degreesC. Magnetization, resistivity and x-ray diffraction measurements indicate that the structural phase transition occurs at similar to103 K, substantially lower than the value reported for samples quenched from 800degreesC and ordered in the Heusler L2(1) structure. A small reduction in the ferromagnetic moment was also observed, although the Curie temperature remained largely unaffected. The electronic Sommerfeld coefficient obtained from heat capacity measurements is enhanced but smaller than that observed for the 800degreesC quenched sample. The results are consistent with band structure calculations and the electronic changes brought about by atomic disorder.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available