Nearly constant magnetic entropy change involving two closely spaced transitions in the compound LaFe11.375Al1.625

F. X. Hu*, X. L. Qian, G. J. Wang, J. Wang, J. R. Sun, Xixiang Zhang, Z. H. Cheng, B. G. Shen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

A large change in the magnetic entropy, |ΔS|, was observed in the Fe-based NaZn13-type compound LaFe11.375Al1.625, which was nearly temperature independent over a wide temperature range (an about 70 K span from ∼140 to 210 K). This behaviour of the magnetic entropy change is associated with two closely spaced magnetic transitions. X-ray diffraction investigation at different temperatures indicates that the crystal structure remains cubic, of NaZn13 type, when the magnetic state changes with temperature, but the cell parameter changes dramatically at the first-order transition point.

Original languageEnglish (US)
Pages (from-to)3299-3306
Number of pages8
JournalJournal of Physics Condensed Matter
Volume15
Issue number19
DOIs
StatePublished - May 21 2003

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics

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