Signatures of nearly invisible defects in PrBa2Cu3O7 and Pr2-zCezSr2Cu2NbO10 -: art. no. 094517

被引：15

作者：

Blackstead, HA

Dow, JD

Felner, I

Yelon, WB

机构：

[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[2] Arizona State Univ, Dept Phys, Tempe, AZ 85287 USA

[3] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[4] Univ Missouri, Res Reactor Facil, Columbia, MO 65211 USA

来源：

PHYSICAL REVIEW B | 2001年 / 63卷 / 09期

关键词：

D O I：

10.1103/PhysRevB.63.094517

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pr-Ba and Pr-Sr are the defects responsible for the suppression of superconductivity in PrBa2Cu3O7 and in Pr1.5Ce0.5Sr2Cu2NbO10, respectively, and are difficult to detect with conventional techniques. Even neutron scattering has difficulty detecting Pr-Ba because the scattering lengths of Pr and Pa are so similar. In this paper, we point out how these alkaline-earth-site Pr defects can be readily detected indirectly in fully oxygenated samples, using measurements of the c-axis lengths.

引用

页码：945171 / 945174

页数：4

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