JETP Letters -- July 25, 2000 -- Volume 72, Issue 2 pp. 73-76
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Anisotropy of Normal Resistivity in Oxygen-Deficient
YBa2Cu3O7 - x Single
Crystals
- V. N. Zverev and D. V. Shovkun
- Institute of Solid-State Physics, Russian Academy of
Sciences, Chernogolovka, Moscow region, 142432 Russia
(Received June 15, 2000)
Temperature dependences of the resistivity tensor components 
ab and c were measured
for YBa2Cu3O7 - x single crystals
with different oxygen contents. The resistivity anisotropy c/ab was found to grow
exponentially with decreasing temperature. The results are compared
with the predictions of different models describing transverse transport
in the normal state of cuprate high-Tc superconductors.
PACS: 74.25.Fy, 74.72.Bk