Orbitally driven spin pairing in the three-dimensional nonmagnetic Mott insulator Evidence from single-crystal studies

G. Mihály, I. Kézsmárki, F. Zámborszky, M. Miljak, K. Penc, P. Fazekas, H. Berger, L. Forró

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Static electrical and magnetic properties of single crystal (Formula presented) were measured over the structural (Formula presented) metal insulator (Formula presented) and suspected orbital ordering (Formula presented) transitions. The resistivity is almost isotropic both in the metallic and insulating states. An anomaly in the magnetic anisotropy at (Formula presented) signals a phase transition to an ordered low-T state. The results are interpreted in terms of orbital ordering and spin pairing within the lowest crystal-field quasidoublet. The disordered insulator at (Formula presented) is described as a classical liquid of nonmagnetic pairs.

Original languageEnglish
Pages (from-to)R7831-R7834
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume61
Issue number12
DOIs
Publication statusPublished - Jan 1 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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