Dynamic investigations on the influence of epitaxial strain on the superconducting transition in YBa2Cu3O7-x

被引：21

作者：

Huehne, R. ^{[1
]}

Okai, D. ^{[1
]}

Doerr, K. ^{[1
]}

Trommler, S. ^{[1
,2
]}

Herklotz, A. ^{[1
,2
]}

Holzapfel, B. ^{[1
,2
]}

Schultz, L. ^{[1
,2
]}

机构：

[1] IFW Dresden, Inst Met Mat, D-01171 Dresden, Germany

[2] Tech Univ Dresden, Dept Phys, Inst Phys Solids, D-01062 Dresden, Germany

来源：

SUPERCONDUCTOR SCIENCE & TECHNOLOGY | 2008年 / 21卷 / 07期

关键词：

D O I：

10.1088/0953-2048/21/7/075020

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

YBa(2)Cu(3)O(7-x) (YBCO) films have been prepared on piezoelectric (001) Pb(Mg(1/3)Nb(2/3))(0.72)Ti(0.28)O(3) (PMN-PT) substrates for dynamic investigations on the influence of strain on the superconducting transition temperature. The YBCO films deposited by off-axis pulsed laser deposition showed a perfect epitaxial growth on the piezocrystals but also significant surface roughness due to the miscut of the substrate. The in-plane lattice constant of the PMN- PT substrate was varied dynamically by the application of an electric field of <= 10 kV cm(-1). As a result, a reversible shift of the superconducting transition by about 0.1 K was found on an optimally doped YBCO film for an applied strain of 0.05%. The results show for the first time that this approach is suitable for studying the strain dependence of superconducting properties in detail.

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