Antiferro-to-ferromagnetic transition in metallic TlCo2SxSe2-x (0 ⪕ x ⪕ 2.0) with the ThCr2Si2 type structure

Mark Greaney, Guohe Huan, K. V. Ramanujachary, Zeri Teweldemedhin, Martha Greenblatt

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Abstract

Solid solutions with the composition: TlCo2SxSe2-x (0.0 {slanted equal to or less-than} x {slanted equal to or less-than} 2.0), were synthesized by high temperature solid state reactions. Resistivity measurements on sintered pellets demonstrated that all of the compositions were highly metallic (ρ{variant} = 10-4 - 10-5 Ω-cm). The magnetic phase diagram was determined by magnetic susceptibility measurements. The Se-rich phases (0.0 {slanted equal to or less-than} x ≤ 0.75) order antiferromagnetically, the S-rich phases (0.75 ≤ x {slanted equal to or less-than} 2.0) order ferromagnetically, and the intermediate composition (x = 0.75) shows competition between antiferromagnetic and ferromagnetic behavior.

Original languageEnglish (US)
Pages (from-to)803-810
Number of pages8
JournalSolid State Communications
Volume79
Issue number10
DOIs
StatePublished - Sep 1991

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All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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