LATTICE-DYNAMICS OF THE HIGH T(C) SUPERCONDUCTOR ERBA2CU3O7

被引：1
|
作者：
MOHAN, S [1 ]
KANNAN, R [1 ]
机构：
[1] PONDICHERRY ENGN COLL, PONDICHERRY 605104, INDIA
来源：
AUSTRALIAN JOURNAL OF PHYSICS | 1994年 / 47卷 / 01期
关键词：
D O I：
10.1071/PH940103
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The lattice dynamics of the high T(c) superconductor ErBa2Cu3O7 have been investigated in detail with a modified three-body force shell model. The model accounts for the effect of many-body interactions in the lattice potential. The aim of the present work is to treat the various interactions between the ions in generalised way without making them numerically equal. The values of the phonon frequencies calculated at the zone centre by this new approach are in good agreement with the available Raman and infrared data.
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页码：103 / 108
页数：6
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