Magnetic properties of the garnet and glass forms of Mn3 A 12 Si3 O12

G. C. Lau, T. Klimczuk, F. Ronning, T. M. McQueen, R. J. Cava

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The magnetic susceptibilities and specific heats of the crystalline garnet and glass forms of Mn3 A12 Si3 O12 are reported. This allows a direct comparison of the degree of magnetic frustration of the triangle-based garnet lattice and the structurally disordered solid at the same composition for isotropic spin 5/2 Mn2+ (3 d5). The results show that the glass phase shows more pronounced signs of magnetic frustration than the crystalline phase. Through comparison of the specific heats of Ca3 Al2 Si3 O12 (grossular) and Mn3 Al2 Si3 O12 (spessartine) garnets, information is provided concerning the anomalous extra specific heat in the latter material.

Original languageEnglish (US)
Article number214414
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number21
StatePublished - Dec 16 2009

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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