ANOMALY OF THE OXYGEN LOCAL ENVIRONMENT IN YBA2CU3O7 AROUND TC

被引：4

作者：

TROGER, L ^{[1
]}

ARVANITIS, D ^{[1
]}

ROHLER, J ^{[1
]}

SCHLIEPE, B ^{[1
]}

BABERSCHKE, K ^{[1
]}

机构：

[1] UNIV COLOGNE,INST PHYS 2,W-5000 COLOGNE 41,GERMANY

来源：

SOLID STATE COMMUNICATIONS | 1991年 / 79卷 / 06期

关键词：

D O I：

10.1016/0038-1098(91)90034-S

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The Extended X-ray Absorption Fine Structure was measured as a function of temperature above the O K-edge in the O K-alpha fluorescence yield mode. From the EXAFS amplitude and phase the oxygen atom's local environment could be determined as a function of temperature. These results confirm the changes in frequency and intensity of A(g) symmetry vibrational modes observed by Raman spectroscopy. The data are analyzed in terms of a change in the vibrational amplitude of the O2 and O3 versus the Cu2 atoms around T(c).

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页码：479 / 482

页数：4

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