Scattering Processes of Normal and Fluctuating Carriers in ReBa_2Cu_3O_{7-δ} (Re = Y, Ho) Single Crystals with Unidirectional Twin Boundaries

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

Abstracts

EN

The effect of twin boundaries on the normal and fluctuating conductivity of ReBaCuO (Re = Y, Ho) single crystals was investigated. The results indicate that the Lawrence-Doniach theoretical model describes adequately the temperature dependence of the excess conductivity. The twin boundaries are efficient scattering centers for normal and fluctuating carriers. The derived values of the coherence length perpendicular to the ab-planeξ_c(0) are in good agreement with those obtained from magnetic measurements for stoichiometric YBaCuO 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

• Journal: Acta Physica Polonica A
• Year: 2007
• Volume: 111
• Issue: 1
• Pages: 123-128

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

M. Levy

• Department of Materials, Imperial College, London SW7 2BP, United Kingdom

author

A. Chroneos

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

References

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Identifiers

DOI

10.12693/APhysPolA.111.123