Effect of hole doping on the London penetration depth in Bi2.15Sr1.85CaCu2O8+δ and Bi2.1Sr1.9Ca0.85Y0.15Cu2O8+δ

Authors :: Anukool, W
Barakat, S
Panagopoulos, C
Cooper
Cooper, John [0000-0003-4279-1667]
Apollo - University of Cambridge Repository
Publication Year :: 2009
Publisher :: American Physical Society, 2009.
Abstract: We report measurements of ac susceptibility and hence the in-plane London penetration depth on the same samples of Bi2.15Sr1.85CaCu2O8+δ and Bi2.1Sr1.9Ca0.85Y0.15Cu2O8+δ for many values of the hole concentration (p). These support the scenario in which the pseudogap weakens the superconducting response only for p≲0.19.

Subjects :: penetration depth (superconductivity)
superconducting energy gap
calcium compounds
strontium compounds
doping profiles
HIGH-T-C
high-temperature superconductors
THERMOELECTRIC-POWER
INPLANE
bismuth compounds
SUPERCONDUCTORS
DENSITY
BI2SR2CACU2O8+DELTA
yttrium compounds
SINGLE-CRYSTALS
RESISTIVITY
magnetic susceptibility

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