Unusual charge localization in Zn-doped and heavily underdoped YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} at low temperatures

Journal Article · Wed Dec 01 00:00:00 EST 1999 · Journal of Low Temperature Physics

DOI:https://doi.org/10.1023/A:1022563432115· OSTI ID:20015290

Segawa, Kouji; Ando, Yoichi

The in-plane normal-state resistivity of Zn-doped YBa{sub 2}Cu{sub 3}O{sub 7{minus}{delta}} and heavily underdoped pure YBCO single crystals is measured down to low temperatures under magnetic fields up to 18 T. The authors found that the temperature dependence of the normal-state {rho}{sub 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.

• Research Organization: Central Research Inst. for Electric Power Industry, Tokyo (JP)
• OSTI ID: 20015290
• Journal Information: Journal of Low Temperature Physics, Vol. 117, Issue 5-6; Conference: International Conference on Physics and Chemistry of Molecular and Oxide Superconductors, Stockholm (SE), 07/28/1999--08/02/1999; Other Information: PBD: Dec 1999; ISSN 0022-2291
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ELECTRIC CONDUCTIVITY
DOPED MATERIALS
YTTRIUM OXIDES
BARIUM OXIDES
COPPER OXIDES
MAGNETIC FIELDS
TEMPERATURE DEPENDENCE
GROUND STATES
HIGH-TC SUPERCONDUCTORS
ELECTRONIC STRUCTURE