DISORDER AND SUPERCONDUCTIVITY IN YBA2CU3O7-DELTA/GDBA2CU3O7-DELTA SUPERLATTICES

被引：8

作者：

NAKAMURA, O

FULLERTON, EE

GUIMPEL, J

SCHULLER, IK

机构：

[1] Physics Department-0319, University of California-San Diego, La Jolla

来源：

PHYSICA C | 1991年 / 185卷

关键词：

D O I：

10.1016/0921-4534(91)91159-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The structure of c-oriented YBa2Cu3O7-delta/GdBa2Cu3O7-delta superlattices is analyzed through refinement of the X-ray diffraction spectrum. This novel technique, similar in spirit to the well known Rietveld refinement of powder X-ray diffraction spectra, allows quantitative determination of the interfacial roughness. The results show that for these superlattices the roughness consists in step disorder of one unit cell around the average thickness of the layer and interdiffusion of 15 to 25% between the Y and Gd sites within one unit cell from the interface.

引用

页码：2069 / 2070

页数：2

共 5 条

[1] DOUGLAS H, 1990, PHYS REV LETT, V65, P1160
[2] FERNANDES AAR, UNPUB PHYS REV B
[3] FULLERTON EE, UNPUB PHYS REV B
[4] INTERLAYER COUPLING EFFECT IN HIGH-TC SUPERCONDUCTORS PROBED BY YBA2CU3O7-X/PRBA2CU3O7-X SUPERLATTICES
LI, Q
XI, XX
WU, XD
INAM, A
VADLAMANNATI, S
MCLEAN, WL
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NAZAR, L
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (25) : 3086 - 3089
[5] YBA2CU3O7/PRBA2CU3O7 SUPERLATTICES - PROPERTIES OF ULTRATHIN SUPERCONDUCTING LAYERS SEPARATED BY INSULATING LAYERS
TRISCONE, JM
FISCHER, O
BRUNNER, O
ANTOGNAZZA, L
KENT, AD
KARKUT, MG
[J]. PHYSICAL REVIEW LETTERS, 1990, 64 (07) : 804 - 807

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