Composition and temperature dependence of the thermoelectric power of Ni$_{2+x}$Mn$_{1-x}$Ga alloys

P. A. Bhobe; J. H. Monteiro; J. C. Cascalheira; S. K. Mendiratta; K. R. Priolkar; P. R. Sarode

doi:10.1088/0953-8984/18/48/011

paper

Composition and temperature dependence of the thermoelectric power of Ni $_{2 + x}$ Mn $_{1 - x}$ Ga alloys

arXiv:cond-mat/0603752 · doi:10.1088/0953-8984/18/48/011

Abstract

The thermoelectric power (TEP) measurements have been carried out to investigate the changes in the electronic structure associated with the intermartensitic and martensitic transitions in Ni $_{2 + x}$ Mn $_{1 - x}$ Ga (0 $\leq$ x $\leq$ 0.19). The samples have been characterized by a.c. magnetic susceptibility measurements. The correlation between the TEP and the microstructural changes sensitive to the increasing Ni content in Ni $_{2 + x}$ Mn $_{1 - x}$ Ga has been investigated. The changes in the density of states as reflected in the temperature variation of the TEP are consistent with the conclusions drawn from the Jahn-Teller mechanism of lattice distortion.

11 pages, 5 figures; Accepted for publication in J. Phys. Condens. Matter (2006)

References in corpus (1)

Observation of a strongly nested Fermi surface in the shape-memory alloy Ni[0.62]Al[0.38]

Composition and temperature dependence of the thermoelectric power of Ni2+x​Mn1−x​Ga alloys

Abstract

References in corpus (1)

Composition and temperature dependence of the thermoelectric power of Ni $_{2 + x}$ Mn $_{1 - x}$ Ga alloys