Effect of hole doping on the London penetration depth in Bi2.15Sr1.85CaCu2O8+δ and Bi2.1Sr1.9Ca0.85Y0.15Cu2O8+δ
Physical Review B: Condensed Matter and Materials Physics
American Physical Society
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Anukool, W., Barakat, S., Panagopoulos, C., & Cooper, J. (2009). Effect of hole doping on the London penetration depth in Bi2.15Sr1.85CaCu2O8+δ and Bi2.1Sr1.9Ca0.85Y0.15Cu2O8+δ. Physical Review B: Condensed Matter and Materials Physics, 80 (2. 024516)https://doi.org/10.1103/PhysRevB.80.024516
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.
bismuth compounds, calcium compounds, doping profiles, high-temperature superconductors, magnetic susceptibility, penetration depth (superconductivity), strontium compounds, superconducting energy gap, yttrium compounds, HIGH-T-C, THERMOELECTRIC-POWER, SINGLE-CRYSTALS, SUPERCONDUCTORS, BI2SR2CACU2O8+DELTA, RESISTIVITY, INPLANE, DENSITY
We acknowledge funding from the EPSRC (U.K.), for the experimental facilities in Cambridge, and further financial support from The Royal Society, EURYI, and MEXT-CT-2006-039047. W.A. was supported by the Development and Promotion of Science and Technology Talents Project (D.P.S.T.), Thailand.
External DOI: https://doi.org/10.1103/PhysRevB.80.024516
This record's URL: https://www.repository.cam.ac.uk/handle/1810/296742
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