Incommensurate spin spiral of the geometrically-frustrated antiferromagnet CdCr2O4

Jaiho Chung, Young Sang Song, Sungil Park, Hiroaki Ueda, Yutaka Ueda, Seung Hun Lee

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

CdCr2O4 is a cubic spinel with geometrically-frustrated antiferromagnetic interactions between Cr3+ ions. We investigated the structural and magnetic phase transitions in powder samples by using magnetization and neutron diffraction measurements. An antiferromagnetic phase transition was observed at T N = 8.1 K, below which the crystallographic unit cell was tetragonal (c < a = b). Its incommensurate antiferromagnetic ordering below T N resembles dimerized spin chains in the ab planes with the propagation vector k = (0, 0.088, 1). We argue that the Dzyaloshinskii-Moriya interaction and the magnetic frustration play important roles in establishing the observed magnetic ordering.

Original languageEnglish
Pages (from-to)1900-1904
Number of pages5
JournalJournal of the Korean Physical Society
Volume62
Issue number12
DOIs
Publication statusPublished - 2013 Jul 1

Keywords

  • Dzyloshinskii-Moriya exchange
  • Geometrical frustration
  • Incommensurate magnetic order

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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