Unusual charge localization in Zn-doped and heavily underdoped YBa2Cu3O7-delta at low temperatures

Authors
Segawa, K Ando, Y
Citation
K. Segawa et Y. Ando, Unusual charge localization in Zn-doped and heavily underdoped YBa2Cu3O7-delta at low temperatures, J L TEMP PH, 117(5-6), 1999, pp. 1175-1179
Citations number
3
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF LOW TEMPERATURE PHYSICS
ISSN journal
00222291 → ACNP
Volume
117
Issue
5-6
Year of publication
1999
Pages
1175 - 1179
Database
ISI
SICI code
0022-2291(199912)117:5-6<1175:UCLIZA>2.0.ZU;2-N
Abstract
The in-plane normal-state resistivity of Zn-doped YBa2Cu3O7-delta and heavi ly underdoped pure YBCO single crystals is measured down to low temperature s under magnetic fields up to 18 T. We found that the temperature dependenc e of the normal-state rho(ab) does not obey log(1/T) and tends not to diver ge in the low temperature limit. The result suggests that the "ground state " of the normal state of YBCO is metallic. PACS numbers: 74.25.Fy, 74.62.Dh , 74.72.Bk.