Excess Conductivity of Y_{0.95}Pr_{0.05}Ba_2Cu_3O_{7-x} Single Crystals

• Authors: R. Vovk , M. Obolenskii , A. Bondarenko , I. Goulatis , A. Chroneos
• Languages of publication: EN

Abstracts

EN

In this work we investigate the conductivity in the basis plane of YBa_2Cu_3O_{7-x} and Y_{1-z}Pr_zBa_2Cu_3O_{7-x} single crystals with a system of one-direction twin boundaries. The Pr dopants behave as efficient scattering centers of normal and fluctuating carriers. For this a slight doping with praseodymium (till z≈0.05) results in a significant narrowing of the temperature interval in which the pseudo-gap regime is realized in the ab-plane of YBaCuO single crystals.

Keywords

EN

71.20.Eh; 72.10.-d; 74.40.+k; 74.72.-h

Discipline

• 74.72.-h: Cuprate superconductors
• 71.20.Eh: Rare earth metals and alloys
• 72.10.-d: Theory of electronic transport; scattering mechanisms

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 111
• Issue: 1
• Pages: 129-133

Dates

published

2007-01

received

2006-09-04

Contributors

author

R. Vovk

• Kharkov National University, 4 Svoboda Sq., 61077 Kharkov, Ukraine

author

M. Obolenskii

• Kharkov National University, 4 Svoboda Sq., 61077 Kharkov, Ukraine

author

A. Bondarenko

• Kharkov National University, 4 Svoboda Sq., 61077 Kharkov, Ukraine

author

I. Goulatis

• Kharkov National University, 4 Svoboda Sq., 61077 Kharkov, Ukraine

author

A. Chroneos

• Department of Materials, Imperial College, London SW7 2BP, United Kingdom
• Institute of Microelectronics, NCSR Demokritos, Aghia Paraskevi 15310, Greece

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Identifiers

DOI

10.12693/APhysPolA.111.129