Pinned vortex liquid above the critical point of the first-order melting transition: A consequence of pointlike disorder

被引：75

作者：

Lopez, D ^{[1
]}

Krusin-Elbaum, L

Safar, H

Righi, E

de la Cruz, F

Grigera, S

Feild, C

Kwok, WK

Paulius, L

Crabtree, GW

机构：

[1] Argonne Natl Lab, Mat Sci & Sci & Technol Ctr Superconduct, Argonne, IL 60435 USA

[2] IBM Corp, Thomas J Watson Res Ctr, Yorktown Heights, NY 10598 USA

[3] Univ Illinois, Chicago, IL 60607 USA

[4] Comis Nacl Energia Atom, Ctr Atom Bariloche, RA-8400 San Carlos De Bariloche, Rio Negro, Argentina

[5] Western Michigan Univ, Kalamazoo, MI 49008 USA

来源：

PHYSICAL REVIEW LETTERS | 1998年 / 80卷 / 05期

关键词：

D O I：

10.1103/PhysRevLett.80.1070

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on a strongly pinned entangled vortex liquid above the critical point (CP) of the first-order melting transition in untwinned YBa2Cu3O7-delta single crystals, Above CP, the c su;is dissipation is finite where the in-plane dissipation is undetectable, implying large in-plane vortex pinning in the presence of vortex cutting and recombination. We demonstrate that the behavior above CP is governed by pointlike disorder. The same behavior is reproduced in twinned samples with proton-induced point defects. [S0031-9007(97)05237-X].

引用

页码：1070 / 1073

页数：4

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