Magnetic-field switching of crystal structure in an orbital-spin-coupled system: MnV2O4

K. Adachi, T. Suzuki, K. Kato, K. Osaka, M. Takata, T. Katsufuji

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97 Citations (Scopus)

Abstract

We studied the magnetic and structural properties of spinel MnV2O4, which has S=5/2 spin with no orbital degrees of freedom on the Mn2+ site and S=1 spin and three orbital degrees of freedom on the V3+ site. We found that the ferrimagnetic ordering at TN=56.5K and the structural phase transition at Ts=53.5K are closely correlated in this compound and found a switching of crystal structure between cubic and tetragonal phases by the magnetic field. This phenomenon can be explained by the coupling between orbital and spin degrees of freedom in the t2g states of the V site.

Original languageEnglish
Article number197202
JournalPhysical Review Letters
Volume95
Issue number19
DOIs
Publication statusPublished - 2005 Nov 4

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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