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.
|Journal||Journal of Physics: Conference Series|
|Issue number||PART 2|
|State||Published - 1 Jan 2012|
|Event||26th International Conference on Low Temperature Physics, LT 2011 - Beijing, China|
Duration: 10 Aug 2011 → 17 Aug 2011
ASJC Scopus subject areas
- Physics and Astronomy (all)