Magnetic, magnetocaloric and magnetoresistance properties of Nd 7Pd3

Niraj K. Singh, Pramod Kumar, Z. Mao, Durga Paudyal, V. Neu, K. G. Suresh, V. K. Pecharsky, K. A. Gschneidner

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10 Scopus citations

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 (TC = 34K). Just above the TC, the magnetization isotherms exhibit a metamagnetic transition from the paramagnetic to a ferromagnetic state. In the immediate vicinity of TC, a field change of only 10kOe leads to the giant magnetocaloric effect of 13 J mol -1 K-1. For a field change of 50kOe a large magnetoresistance of ∼21% is observed near TC. 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.

Original languageEnglish (US)
Article number456004
JournalJournal of Physics Condensed Matter
Volume21
Issue number45
DOIs
StatePublished - 2009

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics

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