SEMIEMPIRICAL STRUCTURAL MODEL OF THE ELECTRIC-FIELD GRADIENTS AT OXYGEN NUCLEI IN YBA2CU3O7

被引：10

作者：

ADRIAN, FJ

机构：

[1] The Johns Hopkins University, Applied Physics Laboratory, Laurel, MD 20723, Johns Hopkins Road

来源：

PHYSICA C | 1990年 / 171卷 / 5-6期

关键词：

D O I：

10.1016/0921-4534(90)90264-F

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The electric field gradients at the oxygen ion sites in YBa2Cu3O7 are calculated as a sum of ionic, overlap, and valence terms using a semiemoirical model in which the O ion holes that determine the valence terms are the principal adjustable parameters. Good fits to the experimental results are obtained for reasonable values of fractional hole character in O 2pσ orbitals only. © 1990.

引用

页码：505 / 512

页数：8

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