Superfluid density measurements of Bi2Sr2CaCu 2O8+x films from optimal doping to strong underdoping

Jie Yong, A. McCray, T. R. Lemberger, M. Naamneh, Amit Kanigel, M. Randeria

Research output: Contribution to journalConference articlepeer-review

Abstract

Temperature dependence of superfluid densities ns(T) ∝ λ-2(T) of underdoped Bi2Sr2CaCu 2O8+x (Bi2212) films are measured. Transition temperature of these films varies from 80K near optimal doping to 12K for severely underdoped ones. T-dependence of superfluid density gradually loses its sharp downward curvature with underdoping. Similar behaviour seen in YBa 2Cu3O7-δ suggests that this is a universal phenomenon in underdoped cuprates.

Original languageEnglish
Article number022141
JournalJournal of Physics: Conference Series
Volume400
Issue numberPART 2
DOIs
StatePublished - 2012
Event26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China
Duration: 10 Aug 201117 Aug 2011

ASJC Scopus subject areas

  • General Physics and Astronomy

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