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

1999/08/09 by Kouji Segawa, Yoichi Ando
Physics and Astronomy · #cond-mat.supr-con #cond-mat.str-el

paper · pdf

published as J. Low Temp. Phys. 117, 1175 (1999). · 5 pages including 2 figures, proceedings manuscript for MOS 99, Stockholm

arxiv created 1999/08/09 · arxiv updated 2009/11/30

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.

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