Effect of Praseodymium Concentration on the Excess Conductivity Near the Critical Temperature of Y1-zPrzBa2Cu3O7-δ Single Crystals

被引：6

作者：

Vovk, R. V. ^{[1
]}

Nazyrov, Z. F. ^{[1
]}

Goulatis, L. I. ^{[2
]}

Chroneos, A. ^{[3
]}

机构：

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

[2] Natl Tech Univ Athens, Dept Chem Engn, Zografos 15780, Greece

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

来源：

JOURNAL OF LOW TEMPERATURE PHYSICS | 2013年 / 170卷 / 3-4期

关键词：

Excess conductivity; Praseodymium; YBCO; Single crystals; PSEUDO-GAP STATE; HIGH-PRESSURE; COMPOUNDS R=Y; TRANSITION;

D O I：

10.1007/s10909-012-0755-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The evolution of the excess conductivity in Y1-z Pr (z) Ba2Cu3O7-delta single crystals has been studied by systematically increasing the praseodymium concentration (0.05a parts per thousand currency signza parts per thousand currency sign0.5). The concentration dependence of the coherence length along c axis xi (c) (0) on the praseodymium content has been determined. The praseodymium concentration reduction from 0.0 to 0.5 results in a substantial broadening of the temperature interval where the excess conductivity takes place. The xi (c) (0) value increases more than fourfold and the 2D-3D crossover point is shifted in temperature.

引用

页码：216 / 222

页数：7

共 21 条

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