A CALCULATION OF ELECTRONIC PROPERTIES OF F' CENTER IN KCL

被引:7
作者
STROZIER, JA
DICK, BG
机构
[1] Physics Department, University of Utah, Salt Lake City, Utah
[2] Department of Material Science, Cornell University, Ithaca, New York
来源
PHYSICA STATUS SOLIDI | 1969年 / 31卷 / 01期
关键词
D O I
10.1002/pssb.19690310124
中图分类号
O469 [凝聚态物理学];
学科分类号
070205 ;
摘要
The electronic properties of the F′ center in KCl were calculated by a variational procedure using a Hamiltonian which approximates the effects of polarization and correlation. The trial functions were orthogonalized to nearest and next nearest neighbor core functions. Values of −1.05 eV for the F′ maximum absorption and −0.49 eV for the thermal dissociation energy were obtained. By approximating the continuum states of the ionized F′ center by eigenstates of an appropriately chosen spherical square well, the shape of the F′ center by eigenstates of an appropriately chosen spherical square well, the shape of the F′ band itself was also calculated and the results compared with Lütys experimental data of F′ absorption in KCl. Fair agreement was obtained. Copyright © 1969 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim
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页码:203 / &
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