Intrinsic percolative superconductivity in heavily overdoped high-temperature superconductors

  title={Intrinsic percolative superconductivity in heavily overdoped high-temperature superconductors},
  author={Hai-Hu Wen and S. L. Li and Z. W. Zhao and Z. Y. Liu and H. P. Yang and Dongning Zheng},
Magnetic measurements on heavily overdoped La 2 − x Sr x CuO 4, Tl2Ba2CuO6, Bi2Sr2CuO6, Y 1 − x (Ca x)Ba2Cu3O7 − δ and Bi2Sr2CaCu2O8 single crystals reveal a new type of magnetization hysteresis loops characterized by the vanishing of the usual central peak near zero field. Since this effect has been observed in various systems with very different structural details, it probably reflects a generic behavior for all high-temperature superconductors. This easy penetration of magnetic flux can be… 
9 Citations
Magnetic-Susceptibility and Specific-Heat Studies on the Inhomogeneity of Superconductivity in the Underdoped La2-xSrxCuO4
The possible inhomogeneity of superconductivity has been investigated by means of bulk-sensitive probes , using La 2- x Sr x CuO 4 (LSCO) single crystals from the underdoped to optimally doped
μSR Studies of Cuprate Superconductors
A partial review of magnetic and superconducting properties of hole-doped cuprates determined by μSR is given. Much was learned about these materials from μSR experiments performed in the early years
High-field μSR studies of superconducting and magnetic correlations in cuprates above T(c).
  • J. Sonier
  • Physics
    Journal of physics. Condensed matter : an Institute of Physics journal
  • 2010
The width of the internal field distribution of underdoped Y Ba(2)Cu(3)O(y) above T( c) is observed to track T(c) and the density of superconducting carriers, which suggests that the magnetic response above T (c) is not dominated by electronic moments, but rather inhomogeneous fluctuating superconductivity.
Magnetic-field-induced enhancement of the vortex pinning in the overdoped regime of La$_{2-x}$Sr$_x$CuO$_4$ : Relation to the microscopic phase separation
In order to investigate the inhomogeneity of the superconducting (SC) state in the overdoped high-$T_{\rm c}$ cuprates, we have measured the magnetic susceptibility, $\chi$, of
From quantized states to percolation: Scanning tunneling spectroscopy of a strongly disordered two-dimensional electron system
Low-temperature scanning tunneling spectroscopy is used to study the local density of states (LDOS) of an adsorbate induced two-dimensional electron system in a strong disorder potential. At low