Field-induced orbital order-disorder transition in an A-type antiferromagnetic manganite: High-field study of Nd0.45Sr0.55MnO3

T. Hayashi, N. Miura, K. Noda, H. Kuwahara, S. Okamoto, S. Ishihara, S. Maekawa

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

Magnetization and magnetoresistance were measured in A-type antiferromagnet Nd0.45Sr0.55MnO3 utilizing pulsed magnetic fields up to 45 T. We have observed a ferromagnetic transition accompanied by a discontinuous decrease of resistivity. The temperature dependence of the resistivity in the ferromagnetic state showed characteristics of a three-dimensional metal. The observed phenomena are explained in terms of simultaneous destruction of the dx2-y2 orbital ordering and the A-type antiferromagnetic spin ordering by magnetic field.

Original languageEnglish
Article number024408
Pages (from-to)244081-244085
Number of pages5
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume65
Issue number2
Publication statusPublished - 2002 Jan 1

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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