Critical points in heavy ion irradiated untwinned YBa2Cu3O7-δ crystals

被引：54

作者：

Kwok, WK

Olsson, RJ

Karapetrov, G

Paulius, LM

Moulton, WG

Hofman, DJ

Crabtree, GW

机构：

[1] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[2] Argonne Natl Lab, Sci & Technol Ctr Supercond, Argonne, IL 60439 USA

[3] Western Michigan Univ, Dept Phys, Kalamazoo, MI 49008 USA

[4] Florida State Univ, Dept Phys, Natl Lab High Energy Phys, Tallahassee, FL 32306 USA

[5] Univ Illinois, Dept Phys, Chicago, IL 60607 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 16期

关键词：

D O I：

10.1103/PhysRevLett.84.3706

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The critical points in untwinned YBa2Cu3O7-delta crystals with dilute columnar defects an investigated. We find a convergence of a first order vortex melting line with an irreversibility line associated with the onset of the Bose glass critical regime at the lower critical point. In addition, we find that columnar defects raise the upper critical point, implying that vortex line meandering is a basic feature controlling its position.

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页码：3706 / 3709

页数：4

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