Normal state phase diagram of (La,Sr)2 CuO4 from charge and spin dynamics

B. Batlogg, H. Y. Hwang, H. Takagi, R. J. Cava, H. L. Kao, J. Kwo

Research output: Contribution to journalArticle

216 Scopus citations

Abstract

The significant progress in elucidating the normal state of the prototypical cuprate La2-xSrxCuO4 is described. New insight is gained from quantitative charge dynamics studies (resistivity, Hall effect) over wide temperature and hole concentration ranges. Characteristic temperatures T* have been discovered and corresponding T*'s can also be identified in the magnetic response. At lowest carrier concentrations, T*'s start out high (700K-800K) and drop rapidly to ∼ 100K when superconductivity disappears at high doping levels. From comparisons with other compounds, we suggest that the T* marks the development of a pseudogap in the excitation spectrum and we present a T*-x diagram for LSCO, which we suggest is generic to all hole doped layered cuprates.

Original languageEnglish (US)
Pages (from-to)130-133
Number of pages4
JournalPhysica C: Superconductivity and its applications
Volume235-240
Issue numberPART 1
DOIs
StatePublished - Dec 1994

All Science Journal Classification (ASJC) codes

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

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