Correlated decrease between the superconducting volume fraction and T c and possible phase separation in the overdoped regime of La 2-xSrxCuO4

Y. Tanabe, T. Adachi, T. Noji, H. Sato, Y. Koike

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

In order to prove the possible phase separation in the overdoped high-Tc superconductors, suggested from the muon-spin-relaxation measurements, the superconducting (SC) volume fraction has been investigated in detail in the overdoped regime of La2-xSrxCuO4. From measurements of the magnetic susceptibility, χ, using a single crystal in which the Sr concentration, x, continuously changes in the overdoped regime, both the absolute value of χ at 2 K, χ2K, on field cooling reflecting the SC volume fraction and Tc have been found to decrease with increasing x. Moreover, it appears that χ2K has a roughly linear relation to Tc. It has been concluded that phase separation into SC and normal-state regions takes place in the overdoped regime of La 2-xSrxCuO4.

Original languageEnglish
Title of host publicationLOW TEMPERATURE PHYSICS
Subtitle of host publication24th International Conference on Low Temperature Physics - LT24
Pages419-420
Number of pages2
DOIs
Publication statusPublished - 2006 Dec 1
EventLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States
Duration: 2006 Aug 102006 Oct 17

Publication series

NameAIP Conference Proceedings
Volume850
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

OtherLOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
CountryUnited States
CityOrlando, FL
Period06/8/1006/10/17

Keywords

  • LaSr CuO
  • Magnetic susceptibility
  • Overdoped regime
  • Phase separation

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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