Unusual Charge Localization in Zn-doped and Heavily Underdoped YBa2Cu3O7-d at Low Temperatures

Kouji Segawa; Yoichi Ando

Unusual Charge Localization in Zn-doped and Heavily Underdoped YBa2Cu3O7-d at Low Temperatures

Superconductivity 2007-05-23 v1 Strongly Correlated Electrons

Authors: Kouji Segawa , Yoichi Ando

Abstract

The in-plane normal-state resistivity of Zn-doped YBa2Cu3O7-d and heavily underdoped pure YBCO single crystals is measured down to low temperatures under magnetic fields up to 18 T. We found that the temperature dependence of the normal-state rho_ab does not obey log(1/T) and tends not to diverge in the low temperature limit. The result suggests that the ``ground state'' of the normal state of YBCO is metallic.

Keywords

charge localization zn-doped ybco underdoped cuprate normal-state resistivity low temperature

Cite

@article{arxiv.cond-mat/9908124,
  title  = {Unusual Charge Localization in Zn-doped and Heavily Underdoped YBa2Cu3O7-d at Low Temperatures},
  author = {Kouji Segawa and Yoichi Ando},
  journal= {arXiv preprint arXiv:cond-mat/9908124},
  year   = {2007}
}

Comments

5 pages including 2 figures, proceedings manuscript for MOS 99, Stockholm

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