UPPER CRITICAL-FIELD HC2 OF SINGLE-CRYSTAL Y1-XPRXBA2CU3O7-DELTA

被引：43

作者：

JIA, YX ^{[1
]}

LIU, JZ ^{[1
]}

LAN, MD ^{[1
]}

KLAVINS, P ^{[1
]}

SHELTON, RN ^{[1
]}

RADOUSKY, HB ^{[1
]}

机构：

[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.45.10609

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report measurements of upper critical fields H(c2) of Y1-xPrxBa2CU3O7-delta single crystals, with x varying from 0 to 0.54. Values of H(c2) were determined resistively. For various Pr concentrations, we find that H(c2) shows a linear temperature dependence under a field up to 5 T both parallel and perpendicular to the c axis. The coherence length xi(ab)(0), xi(c)(0), and zero-temperature upper critical field H(c2)(0) for various Pr concentrations and field configurations are derived from these experimental results. A possible mechanism responsible for the observed composition dependence of the normalized upper-critical-field slope in the H parallel-to c case is discussed.

引用

页码：10609 / 10615

页数：7

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