Cuprate superconductors as anomalous metallic states near the Mott insulator

Research output: Contribution to journalArticle

Abstract

Spin and charge responses of the normal state in the cuprates are analyzed in terms of a state close to the Mott insulator. An anomalous feature of the cuprates is demonstrated from a general theory of the Mott transition. A remarkable crossover between a single- and a multi-component carrier system and its consequences in the cuprates is discussed. A phenomenological theory of the spin correlation is also constructed based on the fact that the spin correlation has a characteristic correlation length inversely proportional to the doping concentration with an insensitive temperature dependence. The NMR and the neutron data of the cuprates are both accounted for by the phenomenological theory.

Original languageEnglish
Pages (from-to)2283-2284
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume235-240
Issue numberPART 4
DOIs
Publication statusPublished - 1994 Dec
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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