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

Nobuhiro Mitani, Susumu Kurihara

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)13-21
Number of pages9
JournalPhysica C: Superconductivity and its Applications
Volume206
Issue number1-2
DOIs
Publication statusPublished - 1993 Feb 10
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

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