Scattering processes of normal and fluctuating carriers in ReBa2Cu3O7-δ (Re = Y, Ho) single crystals with unidirectional twin boundaries

被引：5

作者：

Vovk, R. V.

Obolenskii, M. A.

Bondarenko, A. V.

Goulatis, I. L.

Levy, M. R.

Chroneos, A.

机构：

[1] Kharkov Natl Univ, UA-61077 Kharkov, Ukraine

[2] Univ London Imperial Coll Sci Technol & Med, Dept Mat, London SW7 2BP, England

[3] NCSR Demokritos, Inst Microelect, Aghia Paraskevi 15310, Greece

来源：

ACTA PHYSICA POLONICA A | 2007年 / 111卷 / 01期

关键词：

D O I：

10.12693/APhysPolA.111.123

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

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-plane xi(c)(0) are in good agreement with those obtained from magnetic measurements for stoichiometric YBaCuO crystals.

引用

页码：123 / 128

页数：6

共 9 条

[1]

ASLAMAZOV LG, 1968, FIZ TVERD TELA+, V10, P875

[2] PRESSURE STUDY OF THE PARACONDUCTIVITY OF HIGH-TC SUPERCONDUCTORS [J].

BORGES, HA ;

CONTINENTINO, MA .

SOLID STATE COMMUNICATIONS, 1991, 80 (03) :197-199

[3] X-RAY-DIFFRACTION AND INFRARED INVESTIGATION OF RBA(2)CU(3)O(7) AND R(0.5)PR(0.5)BA(2)CU(3)O(7) COMPOUNDS (R=Y AND LANTHANIDES) [J].

CHRYSSIKOS, GD ;

KAMITSOS, EI ;

KAPOUTSIS, JA ;

PATSIS, AP ;

PSYCHARIS, V ;

KOUFOUDAKIS, A ;

MITROS, C ;

KALLIAS, G ;

GAMARISEALE, E ;

NIARCHOS, D .

PHYSICA C, 1995, 254 (1-2) :44-62

[4]

Lawrence W., 1971, P 12 INT C LOW TEMP

[5]

MOSCHALKOV BB, 1988, FIZ NIZK TEMP, V14, P988

[6]

OBOLENSKII MA, 1990, FIZ NIZK TEMP+, V16, P1103

[7] UPPER CRITICAL-FIELD, FLUCTUATION CONDUCTIVITY, AND DIMENSIONALITY OF YBA2CU3O7-X [J].

OH, B ;

CHAR, K ;

KENT, AD ;

NAITO, M ;

BEASLEY, MR ;

GEBALLE, TH ;

HAMMOND, RH ;

KAPITULNIK, A ;

GRAYBEAL, JM .

PHYSICAL REVIEW B, 1988, 37 (13) :7861-7864

[8]

RYBALCHENKO LF, 1990, FIZ NIZK TEMP+, V16, P58

[9] Fluctuation conductivity and critical currents in YBCO films [J].

Solovjov, AL ;

Svetlov, VN ;

Stepanov, VB ;

Dmitriev, VM .

LOW TEMPERATURE PHYSICS, 2003, 29 (12) :973-981

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