Magnetic, magnetocaloric and magnetoresistance properties of Nd7Pd3

TitleMagnetic, magnetocaloric and magnetoresistance properties of Nd7Pd3
Publication TypeJournal Article
Year of Publication2009
AuthorsSingh NK, Kumar P, Mao Z, Paudyal D, Neu V, Suresh KG, Pecharsky VK, Gschneidner KA
Journal TitleJournal of Physics-Condensed Matter
Volume21
Pages456004
Date Published11/11
ISBN Number0953-8984
Accession NumberISI:000271090200025
Abstract

Magnetic, magnetocaloric and magnetoresistance properties of the intermetallic compound Nd7Pd3 have been investigated. It exhibits a first-order magnetic phase transition at its ferromagnetic ordering temperature (T-C = 34 K). Just above the T-C, the magnetization isotherms exhibit a metamagnetic transition from the paramagnetic to a ferromagnetic state. In the immediate vicinity of T-C, a field change of only 10 kOe leads to the giant magnetocaloric effect of 13 J mol(-1) K-1. For a field change of 50 kOe a large magnetoresistance of similar to 21% is observed near T-C. First-principles electronic structure calculations indicate that the first-order phase transition in Nd7Pd3 may originate from the peculiar nature of the density of states near the Fermi level.

URL<Go to ISI>://000271090200025
DOI10.1088/0953-8984/21/45/456004