Resistance noise in Bi2Sr2CaCu2O8+delta

[摘要] The resistance noise in a Bi2Sr2CaCu2O8+delta thin film is found to increase strongly in the underdoped regime. While the increase of the raw resistance noise with decreasing temperature appears to roughly track the pseudogap temperature for this material, standard noise analysis rather suggests that the additional noise contribution is driven by the proximity of the superconductor-insulator transition.

[发布日期] 2007-12-01

[关键词] THIN-FILMS;TRANSPORT-PROPERTIES;PSEUDOGAP;STATE;SUPERCONDUCTIVITY;LA2-XSRXCUO4;DISORDER;BEHAVIOR