Magnetotransport property of the hole-doped delafossite CuCr0.97Mg0.03O2 with a Spin-3/2 antiferromagnetic triangular sublattice

Tetsuji Okuda, Satoshi Oozono, Takumi Kihara, Masashi Tokunaga

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

The magnetotransport property of a hole-doped delafossite CuCr0.97Mg0.03O2 with a spin-3/2 antiferromagnetic (AF) triangular sublattice was investigated by using a pulsed high magnetic field. A dramatic change of magnetoresistance was observed with a variation of temperature, which indicates that a spin fluctuation due to a competition between the AF and the ferromagnetic Hund's interactions is enhanced at temperatures around the Néel temperatures (T N). The competition may lead to a partially-disordered state at temperatures below T N which may cause a nontrivial promotion of a 120° Néel state.

Original languageEnglish
Pages (from-to)2168-2172
Number of pages5
JournalJournal of the Korean Physical Society
Volume62
Issue number12
DOIs
Publication statusPublished - 2013 Jul 1
Externally publishedYes

Keywords

  • Antiferromagnetic triangular lattice
  • Delafossite
  • Magnetoresistance

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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