Antiferromagnetic order in disorder-induced insulating phase of SrRu 1-xMnxO3 (0.4 ≤ x ≤ 0.6)

Makoto Yokoyama, Chimato Satoh, Akinori Saitou, Hirofumi Kawanaka, Hiroshi Bando, Kenji Ohoyama, Yoshikazu Nishihara

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

We have performed powder neutron diffraction measurements on the solid solutions of SrRu1-x-MnxO3, and found that the itinerant ferromagnetic order observed in pure SrRuO3 changes into the C-type antiferromagnetic (AF) order with nearly localized d electrons in the intermediate Mn concentration range between x = 0.4 and 0.6. With increasing x, the AF moment is strongly enhanced from 1.1 μB (x = 0.4) to 2.6 μB (x = 0.6), which is accompanied by the elongation of the tetragonal c/a ratio. These results suggest that the substitution of Mn for Ru suppresses the itinerant characteristic of the d electrons, and induces the superexchange interaction through the compression in the c plane. We have also found that the magnetic and transport properties observed in our tetragonal samples are similar to those of recently reported orthorhombic ones.

Original languageEnglish
Pages (from-to)1706-1709
Number of pages4
Journaljournal of the physical society of japan
Volume74
Issue number6
DOIs
Publication statusPublished - 2005 Jun 1

Keywords

  • Antiferromagnetism
  • Ferromagnetism
  • Metal-insulator transition
  • Neutron scattering
  • SrRuO

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Yokoyama, M., Satoh, C., Saitou, A., Kawanaka, H., Bando, H., Ohoyama, K., & Nishihara, Y. (2005). Antiferromagnetic order in disorder-induced insulating phase of SrRu 1-xMnxO3 (0.4 ≤ x ≤ 0.6). journal of the physical society of japan, 74(6), 1706-1709. https://doi.org/10.1143/JPSJ.74.1706