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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Abstract

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
Volume17
Issue number14
DOIs
Publication statusPublished - Jul 12 2005

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Magnetic susceptibility
Band structure
Rare earths
Specific heat
Intermetallics
Magnetization
Magnetic properties
Hysteresis
Magnetic fields
Hysteresis loops
Electronic structure
Phase transitions
Temperature

ASJC Scopus subject areas

  • Materials Chemistry
  • Materials Science(all)

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Observation of unusual hysteretic magnetic properties of the rare earth intermetallic compound PrMnSi 2 : Magnetic susceptibility, magnetization, heat capacity, and electronic band structure studies. / Kim, Sang Hwan; Seo, Dong Kyun; Kremer, Reinhard K.; Köhler, Jürgen; Villesuzanne, Antoine; Whangbo, Myung Hwan.

In: Chemistry of Materials, Vol. 17, No. 14, 12.07.2005, p. 3711-3716.

Research output: Contribution to journalArticle

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