Radiative corrections to spin waves in the interacting hole-spin model

Nobuhiro Mitani*, Susumu Kurihara

*この研究の対応する著者

研究成果: Article査読

1 被引用数 (Scopus)

抄録

We investigate the quantum fluctuation effect of the two-dimensional Heisenberg antiferromagnet coupled to conduction holes via a Kondo-type exchange interaction. By the use of the large-S expansion, we find that the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction around the momentum transfer Q of antiferromagnetic (AFM) fluctuations has the crucial effect of "melting" the AFM long-range order. We obtain a qualitative phase boundary as a function of temperature and hole doping. We examine analytically the effects of the renormalized spin waves on the superconducting phase. We show the effects of quantum spin fluctuations on the superconducting phase boundary and the NMR spin relaxation rate.

本文言語English
ページ(範囲)13-21
ページ数9
ジャーナルPhysica C: Superconductivity and its Applications
206
1-2
DOI
出版ステータスPublished - 1993 2月 10
外部発表はい

ASJC Scopus subject areas

  • 凝縮系物理学

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