Excitation of an X-ray standing wave in a SmBa2Cu3O7-delta thin film

被引：14

作者：

Kazimirov, A ^{[1
]}

Haage, T ^{[1
]}

Ortega, L ^{[1
]}

Stierle, A ^{[1
]}

Comin, F ^{[1
]}

Zegenhagen, J ^{[1
]}

机构：

[1] EUROPEAN SYNCHROTRON RADIAT FACIL,F-38043 GRENOBLE,FRANCE

来源：

SOLID STATE COMMUNICATIONS | 1997年 / 104卷 / 06期

关键词：

high-T-c superconductors; thin films; synchrotron radiation;

D O I：

10.1016/S0038-1098(97)00335-9

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

An X-ray standing-wave was generated by a 150 nm-thick SmBa2Cu3O7-delta film grown on a SrTiO3(001) substrate by pulsed laser deposition. The Sm-L-fluorescence yield was measured as a function of incidence angle within the range of the (005) reflection from the thin film. The modulation of the yield indicated that for this particular epilayer the Sm is occupying the rare earth position (no occupation of Basites within the limit of error of approximate to 10%). Within the Bragg-reflection range, the modulation of the fluorescence yield is only a few percent. However, because the crystal is very thin, the reflection curve is rather wide (tenth of a degree) in angle. Employing brilliant synchrotron radiation this approach may be used routinely for structural studies of compound materials which are available as high-quality thin films but not as perfect single crystals. (C) 1997 Elsevier Science Ltd.

引用

页码：347 / 350

页数：4

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