Effect of Carrier Concentration  to the Temperature Dependence of the Superfluid Density of High-Tc Cuprates.

C. Panagopoulos, B.D. Rainford, J.R. Cooper, W. Lo, J. Tallon, J. Loram, Joseph Betouras, Y. Chang, C.W. Chu

Research output: Contribution to journalArticlepeer-review

104 Citations (Scopus)

Abstract

The absolute values and temperature, T, dependence-Of the in-plane magnetic penetration depth of La2-xSrxCuO4 and HgBa2CuO4+delta have been measured as a function of carrier concentration. We find that the superfluid density rho(s) changes substantially and systematically with doping. The values of rho(s)(0) are closely linked to the available low-energy spectral weight as determined by the electronic entropy just above T-c, and the magnitude of the initial slope of [rho(s)(T)/rho(s)(0)] increases rapidly with carrier concentration. The results are discussed in the context of a possible relationship between-rho(s) and the normal-state (or pseudo)energy gap. [S0163-1829(99)04546-4].

Original languageEnglish
Pages (from-to)14617-14620
Number of pages4
JournalPhysical Review. B, Condensed matter and materials physics
Volume60
Publication statusPublished - 1 Dec 1999

Keywords

  • MUON-SPIN-ROTATION
  • MAGNETIC PENETRATION DEPTH
  • NORMAL-STATE
  • SUPERCONDUCTING PROPERTIES
  • FERMI-SURFACE
  • TEMPERATURE
  • PSEUDOGAP
  • SCATTERING
  • HGBA2CA2CU3O8+DELTA
  • HGBA2CUO4+DELTA

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