Structural and magnetic properties of Mn 2+δTiSn

P. Kharel, Y. Huh, V. R. Shah, X. Z. Li, N. Al-Aqtash, K. Tarawneh, E. S. Krage, R. F. Sabirianov, R. Skomski, D. J. Sellmyer

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2 Scopus citations

Abstract

The structural and magnetic properties of Mn 2+delta;TiSn prepared by arc melting and annealing have been investigated. Structural studies show that the compound crystallizes in the hexagonal Ni 3Sn-type structure with a 5.70 Å and c 4.55 Å. The phase stability of Mn 2TiSn in the hexagonal structure is supported by the first-principle electronic structure calculations where the total energy per unit-cell volume in the hexagonal structure is smaller than that in the cubic structure. Field and temperature dependence of magnetization show that the sample is magnetically ordered with a Curie temperature around 400 K. The anisotropy energy calculated from the high-field data is 4.0 × 10 5 ergs/cm 3 at 300 K but increases by a factor of two (8.6 × 10 5 ergs/cm 3) as temperature decreases to 10 K. The observed magnetic properties are explained as the consequences of competing ferromagnetic and antiferromagnetic interactions between different magnetic sublattices.

Original languageEnglish (US)
Article number07B101
JournalJournal of Applied Physics
Volume111
Issue number7
DOIs
StatePublished - Apr 1 2012

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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