Published May 2004 | Version v1
Journal article Metadata-only

Thermally activated phase slip and variable range hopping in Tm(Ba2-xPrx)Cu3O7+δ

Creators

  • 1. Magnet Research Laboratory (MRL), Department of Physics, Sharif University of Technology, P.O. Box 11365-9161, Tehran (Iran, Islamic Republic of)

Description

The magnetoresistance measurement of single phase polycrystalline TmBa2-xPrxCu3O7+δ samples have been analyzed by the Ambegaokar and Halperine (AH) phase slip model. The magnetic field dependence of pinning energy power factors increase with the increase of Pr doping. The derived critical current density from the AH theory decreases with increasing magnetic field and Pr-doping for all superconducting samples. It shows that the Pr-doping plays the role of weak link. We have also investigated the normal state resistivity with the hopping model. We have found a CG-VRH cross-over with the increase of Pr content near metal insulator transition. The deacrease of the localization length of the carriers show that Pr-doping strongly localizes the carriers, and finally causes the suppression of superconductivity. (copyright 2004 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssc.200304483

Additional details

Identifiers

DOI
10.1002/pssc.200304483;

Publishing Information

Journal Title
Physica Status Solidi. C, Conferences
Journal Volume
1
Journal Issue
7
Journal Page Range
p. 1891-1894
ISSN
1610-1634

Conference

Title
MSM '03 - 3. International Conference on Magnetic and Superconducting Materials
Dates
1-4 Sep 2003
Place
Monastir (Tunisia)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
35083075
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
BARIUM COMPOUNDS; CHARGE CARRIERS; CRITICAL CURRENT; CRITICAL TEMPERATURE; CUPRATES; EXPERIMENTAL DATA; HIGH-TC SUPERCONDUCTORS; MAGNETIC FIELDS; MAGNETIC FLUX; MAGNETORESISTANCE; POLYCRYSTALS; PRASEODYMIUM COMPOUNDS; SUPERCONDUCTIVITY; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K; TEMPERATURE RANGE 0273-0400 K; THULIUM COMPOUNDS
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; COPPER COMPOUNDS; CRYSTALS; CURRENTS; DATA; ELECTRIC CONDUCTIVITY; ELECTRIC CURRENTS; ELECTRICAL PROPERTIES; INFORMATION; NUMERICAL DATA; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SUPERCONDUCTORS; TEMPERATURE RANGE; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE; TYPE-II SUPERCONDUCTORS

Optional Information

Notes
With 3 figs., 21 refs.. SICI: 1610-1634(200405)1:7<1891::AID-PSSC200304483>3.0.TX;2-J