Effects of high pressure on the magnetism of ErCo2

Martin Misek*, Jan Prokleska, Vladimir Sechovsky, Dana Turcinkova, Jiri Prchal, Anna F. Kusmartseva, Konstantin V. Kamenev, Jiri Kamarad

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

This paper presents the results of a high pressure study on the ferrimagnetic compound ErCo2, which exhibits at ambient pressure magnetic ordering below T-C = 33 K, where the localized Er magnetic moments order ferromagnetically, and the itinerant moments in the Co sublattice, align antiparallel to the Er moments. In the paramagnetic range, clustering of the Co moments is observed below T-f similar to 100 K for which the term "parimagnetism" has been proposed. In contrast to the pronounced peak in the AC susceptibility data at T-C only a tiny "bump" shows up at T-f. The decrease of both T-C and T-f with applied hydrostatic pressure has been observed, the first one being in agreement with previously published data. At higher pressures, an asymmetry in the T-C-related AC susceptibility peak has been observed owing to a decoupling of the magnetic ordering phenomena in the Er and Co sublattices. Compared to earlier published results, our magnetization measurements at higher pressures above PC reveal a small but clearly observable evolution of both the critical temperature and saturated magnetization. (C) 2012 American Institute of Physics. [doi:10.1063/1.3676014]

Original languageEnglish
Article numberARTN 07E132
Pages (from-to)07E132
Number of pages3
JournalJournal of applied physics
Volume111
Issue number7
DOIs
Publication statusPublished - 1 Apr 2012

Keywords / Materials (for Non-textual outputs)

  • ITINERANT-ELECTRON METAMAGNETISM
  • INTERMETALLIC COMPOUNDS
  • RARE-EARTH
  • PHASE-TRANSITIONS
  • ORDER
  • CO
  • SUBSTITUTION
  • 1ST-ORDER

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