Large magnetic entropy change in Cu-doped manganites

MH Phan*, HX Peng, SC Yu, ND Tho, N Chau

*Corresponding author for this work

Research output: Contribution to journalArticle (Academic Journal)peer-review

53 Citations (Scopus)

Abstract

Magnetic entropy change above 300 K. which is larger than that of gadolinium (Phys. Rev, B 57 (1998) 3478), has been observed in a Cu-doped manganites of La0.7Sr0.3Mn1-xCuxO3 (x = 0.05, 0.1). The large magnetic entropy change originated from a sharp magnetization jump is associated with a first-order crystallographic phase transition of the sample near the Curie temperature. These results suggest that the present Cu-doped manganites are suitable materials for magnetic refrigerants in the room temperature magnetic-refrigeration technology. (C) 2004 Elsevier B.V. All rights reserved.

Original languageEnglish
Pages (from-to)199-203
Number of pages5
JournalJournal of Magnetism and Magnetic Materials
Volume285
Issue number1-2
DOIs
Publication statusPublished - 1 Jan 2005

Keywords

  • magnetic entropy
  • Cu-doped manganites
  • MAGNETOCALORIC PROPERTIES
  • magnetic refrigeration

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