Local-moment ferromagnetism and unusual magnetic domains in Fe1/4 TaS2 crystals

M. D. Vannette, S. Yeninas, E. Morosan, R. J. Cava, R. Prozorov

Research output: Contribution to journalArticle

9 Scopus citations

Abstract

Single crystals of Fe1/4 TaS2 have been studied by using magneto-optical (MO) imaging and radio-frequency magnetic susceptibility, χ. Real-time MO images reveal unusual slow dynamics of dendritic domain formation, the details of which are strongly dependent upon magnetic and thermal history. Measurements of χ (T) show well-defined local-moment ferromagnetic transition at T155K as well as thermal hysteresis for 50<T<60K. This temperature range corresponds to the domain-formation temperature as determined by MO. Together these observations provide strong evidence for local-moment ferromagnetism in Fe1/4 TaS2 crystals with large temperature-dependent magnetic anisotropy.

Original languageEnglish (US)
Article number024421
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume80
Issue number2
DOIs
StatePublished - Aug 6 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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