Hole Localization in Underdoped Superconducting Cuprates Near 1/8th Doping

J. L. Cohn; C. P. Popoviciu; Q. M. Lin; C. W. Chu

doi:10.1103/PhysRevB.59.3823

Hole Localization in Underdoped Superconducting Cuprates Near 1/8th Doping

Superconductivity 2009-10-31 v1 Strongly Correlated Electrons

Authors: J. L. Cohn , C. P. Popoviciu , Q. M. Lin , C. W. Chu

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Abstract

Measurements of thermal conductivity versus temperature over a broad range of doping in YBa $_2$ Cu $_3$ O $_{6+x}$ and HgBa $_2$ Ca $_{n-1}$ Cu $_n$ O $_{2n+2+\delta}$ ( $n$ =1,2,3) suggest that small domains of localized holes develop for hole concentrations near $p$ =1/8. The data imply a mechanism for localization that is intrinsic to the CuO $_2$ -planes and is enhanced via pinning associated with oxygen-vacancy clusters.

Keywords

underdoped cuprates hole localization YBa$_2$Cu$_3$O$_{6+x}$ HgBa$_2$Ca$_{n-1}$Cu$_n$O$_{2n+2+\delta}$ oxygen vacancy clusters

Cite

@article{arxiv.cond-mat/9811060,
  title  = {Hole Localization in Underdoped Superconducting Cuprates Near 1/8th Doping},
  author = {J. L. Cohn and C. P. Popoviciu and Q. M. Lin and C. W. Chu},
  journal= {arXiv preprint arXiv:cond-mat/9811060},
  year   = {2009}
}

Comments

4 pages, 4 eps fig.'s, to be published, Phys. Rev. B

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