Effects of hole-doping and disorder on the magnetic states of delafossite CuCrO2 having a spin-3/2 antiferromagnetic triangular sublattice

Tetsuji Okuda*, Ryoichi Kajimoto, Mario Okawa, Tomohiko Saitoh

*この研究の対応する著者

研究成果: Review article査読

8 被引用数 (Scopus)

抄録

In this review, we will discuss the effects of itinerant hole and disorder produced by substitutions on the magnetic states of polycrystalline delafossite oxide CuCrO2 having a spin-3/2 antiferromagnetic triangular sublattice. First, we will show the effects of hole-doping by the substitution of nonmagnetic Mg2+ for magnetic Cr3+ on the physical properties of CuCrO2, and will discuss the origin of nontrivial promotion of the 120° Néel state due to the coupling between the itinerant hole and localized spin. Next, we will show the effects of disorder introduced by the isovalent substitutions such as the nonmagnetic Ag+ substitution for nonmagnetic Cu+ and the nonmagnetic Al3+ one for magnetic Cr3+, and will discuss the possibility of appearance of unusual magnetic states such as spin liquid or spin nematic states.

本文言語English
論文番号1330002
ジャーナルInternational Journal of Modern Physics B
27
5
DOI
出版ステータスPublished - 2013 2 20
外部発表はい

ASJC Scopus subject areas

  • 統計物理学および非線形物理学
  • 凝縮系物理学

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