VARIATIONAL STUDIES OF D(0) AND D- CENTERS IN MAGNETIC-FIELDS IN BULK CRYSTALS AND IN PARABOLIC QUANTUM-WELLS

被引：16

作者：

BLINOWSKI, J ^{[1
]}

SZWACKA, T ^{[1
]}

机构：

[1] UNIV WARSAW, INST THEORET PHYS, PL-00681 WARSAW, POLAND

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.49.10231

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A linear combination of a few Gaussian functions of variable widths and anisotropy was used as a trial function for D0 centers in bulk crystals and in parabolic quantum wells in the presence of a magnetic field. The same types of functions with an additional correlation factor were then used for D- ions in the bulk and in parabolic quantum wells. All integrals including the electron-electron interaction were calculated analytically. The results obtained for the bulk are very accurate for D0 centers and quite close to the experimental data for D- ions in GaAs. The impurities in parabolic quantum wells were not yet experimentally investigated but the present results indicate that even in the case of a uniform spatial distribution they should lead to well-defined infrared absorption maxima.

引用

页码：10231 / 10241

页数：11

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