Observation of unusual hysteretic magnetic properties of the rare earth intermetallic compound PrMnSi 2: Magnetic susceptibility, magnetization, heat capacity, and electronic band structure studies

Sang Hwan Kim, Dong Kyun Seo, Reinhard K. Kremer, Jürgen Köhler, Antoine Villesuzanne, Myung Hwan Whangbo

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The magnetic properties of the rare earth intermetallic compound PrMnSi 2 were characterized by carrying out magnetic susceptibility, magnetization, and heat capacity measurements and performing APW+lo/ LDA+U electronic band structure calculations for several ordered spin states of PrMnSi 2. The temperature dependence of the magnetic susceptibilities shows strong hysteresis at low magnetic fields and exhibits hysteresis under magnetic fields up to ∼5 T. The magnetizations present unusual hysteresis loops as a function of temperature. The magnetic susceptibility and heat capacity measurements reveal that PrMnSi 2 undergoes three magnetic phase transitions, one below ∼50 K and two below ∼20 K. The probable causes for the observed anomalous magnetic properties were discussed on the basis of nearly degenerate ordered spin states found from electronic structure calculations.

Original languageEnglish
Pages (from-to)3711-3716
Number of pages6
JournalChemistry of Materials
Issue number14
Publication statusPublished - Jul 12 2005


ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Materials Chemistry

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