PARACONDUCTIVITY ALONG THE A-AXES AND B-AXES IN YBA2CU3O7-DELTA SINGLE-CRYSTALS

被引：37

作者：

HOLM, W

ELTSEV, Y

RAPP, O

机构：

[1] Department of Solid State Physics, Royal Institute of Technology

来源：

PHYSICAL REVIEW B | 1995年 / 51卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.51.11992

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have measured the resistance along the a and b axes on several untwinned single crystals of YBa2Cu3O7-δ. To extract the fluctuation part of the conductivity three methods were applied which deal with the contribution from the chains in different ways. The fluctuations along a and b were found to be roughly equal for all samples while the chain fluctuations were about half an order of magnitude smaller. For all samples and regardless of choice of analysis methods we also obtain good agreement with the three-dimensional XY model for critical fluctuations in the region close to Tc. © 1995 The American Physical Society.

引用

页码：11992 / 11995

页数：4

共 16 条

[1]

Crabtree G. W., 1992, Electronic Properties and Mechanisms of High Tc Superconductors. Proceedings of the International Workshop, P193

[2]

FISHER DS, 1990, PHYS REV B, V43, P130

[3] DIRECT MEASUREMENT OF THE ANISOTROPY OF THE RESISTIVITY IN THE A-B PLANE OF TWIN-FREE, SINGLE-CRYSTAL, SUPERCONDUCTING YBA2CU3O7-DELTA [J].

FRIEDMANN, TA ;

RABIN, MW ;

GIAPINTZAKIS, J ;

RICE, JP ;

GINSBERG, DM .

PHYSICAL REVIEW B, 1990, 42 (10) :6217-6221

[4] INPLANE PARACONDUCTIVITY IN A SINGLE-CRYSTAL OF SUPERCONDUCTING YBA2CU3O7-X [J].

FRIEDMANN, TA ;

RICE, JP ;

GIAPINTZAKIS, J ;

GINSBERG, DM .

PHYSICAL REVIEW B, 1989, 39 (07) :4258-4266

[5] T(2) DEPENDENCE OF THE RESISTIVITY IN THE CU-O CHAINS OF YBA2CU3O6.9 [J].

GAGNON, R ;

LUPIEN, C ;

TAILLEFER, L .

PHYSICAL REVIEW B, 1994, 50 (05) :3458-3461

[6] ANISOTROPIC FLUCTUATION MAGNETOCONDUCTIVITY IN A YBA2CU3O7-DELTA SINGLE-CRYSTAL ABOVE TC [J].

HOLM, W ;

ANDERSSON, M ;

RAPP, O ;

KULIKOV, MA ;

MAKARENKO, IN .

PHYSICAL REVIEW B, 1993, 48 (06) :4227-4230

[7]

KAISER DL, 1987, APPL PHYS LETT, V51, P1050

[8] PENETRATION DEPTH MEASUREMENTS OF 3D XY CRITICAL-BEHAVIOR IN YBA2CU3O6.95 CRYSTALS [J].

KAMAL, S ;

BONN, DA ;

GOLDENFELD, N ;

HIRSCHFELD, PJ ;

LIANG, RX ;

HARDY, WN .

PHYSICAL REVIEW LETTERS, 1994, 73 (13) :1845-1848

[9] PARACONDUCTIVITY AND EXCESS HALL-EFFECT IN EPITAXIAL YBA2CU3O7 FILMS INDUCED BY SUPERCONDUCTING FLUCTUATIONS [J].

LANG, W ;

HEINE, G ;

SCHWAB, P ;

WANG, XZ ;

BAUERLE, D .

PHYSICAL REVIEW B, 1994, 49 (06) :4209-4217

[10] CRITICAL FLUCTUATIONS IN HIGH-TC SUPERCONDUCTORS [J].

LOBB, CJ .

PHYSICAL REVIEW B, 1987, 36 (07) :3930-3932

← 1 2 →