BINDING-ENERGY OF A DOUBLE DONOR IN A PARABOLIC QUANTUM-WELL

被引：16

作者：

NICULESCU, EC

机构：

[1] Department of Physics, 'Politehnica' University of Bucharest

来源：

PHYSICS LETTERS A | 1995年 / 197卷 / 04期

关键词：

D O I：

10.1016/S0375-9601(05)80012-X

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have calculated the binding energies of the ground state of a double donor associated with the first subband in a parabolic quantum well. Taking into account the nonparabolicity of the conduction band, we have considered the two cases of positive donor center and neutral donor center. The results have been obtained as a function of the parabolicity parameter by using a variational approach. It is found that the nonparabolicity causes an increase in the binding energy; also, this energy increases with the increasing of the parabolicity parameter alpha.

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页码：330 / 334

页数：5

相关论文

共 13 条

[1] EFFECT OF NONPARABOLICITY ON THE ENERGY-LEVELS OF HYDROGENIC DONORS IN GAAS-GA1-XALXAS QUANTUM-WELL STRUCTURES [J].

CHAUDHURI, S ;

BAJAJ, KK .

PHYSICAL REVIEW B, 1984, 29 (04) :1803-1806

[2] EFFECT OF A FINITE-WIDTH BARRIER ON BINDING-ENERGY IN MODULATION-DOPED QUANTUM-WELL STRUCTURES [J].

CHEN, H ;

ZHOU, SX .

PHYSICAL REVIEW B, 1987, 36 (18) :9581-9586

[3] EFFECT OF MAGNETIC-FIELD ON THE ENERGY-LEVELS OF A HYDROGENIC IMPURITY CENTER IN GAAS GA1-XALXAS QUANTUM-WELL STRUCTURES [J].

GREENE, RL ;

BAJAJ, KK .

PHYSICAL REVIEW B, 1985, 31 (02) :913-918

[4] FAR-INFRARED SPECTROSCOPY OF MINIBANDS AND CONFINED DONORS IN GAAS/ALXGA1-XAS SUPERLATTICES [J].

HELM, M ;

PEETERS, FM ;

DEROSA, F ;

COLAS, E ;

HARBISON, JP ;

FLOREZ, LT .

PHYSICAL REVIEW B, 1991, 43 (17) :13983-13991

[5]

LANDAU L, 1966, MECANIQUE QUANTIQUE, P286

[6] SHALLOW DONORS IN MULTIPLE-WELL GAAS-GA1-XALXAS HETEROSTRUCTURES [J].

LANE, P ;

GREENE, RL .

PHYSICAL REVIEW B, 1986, 33 (08) :5871-5874

[7] BINDING-ENERGIES OF HYDROGENIC IMPURITIES IN PARABOLIC QUANTUM-WELLS [J].

LEAVITT, RP .

PHYSICAL REVIEW B, 1987, 36 (14) :7650-7652

[8] HYDROGENIC IMPURITIES IN SUPERLATTICES WITH PARABOLIC QUANTUM WELL POTENTIALS [J].

LUNAACOSTA, GA .

SOLID STATE COMMUNICATIONS, 1985, 55 (01) :5-8

[9] ENERGY-LEVELS OF A HYDROGENIC IMPURITY IN GAAS GA1-XALXAS MULTIPLE-QUANTUM-WELL STRUCTURES WITH NARROW BARRIERS IN A MAGNETIC-FIELD [J].

NGUYEN, N ;

ZANG, JX ;

RANGANATHAN, R ;

MCCOMBE, BD ;

RUSTGI, ML .

PHYSICAL REVIEW B, 1993, 48 (19) :14226-14231

[10] THEORY OF LOCALIZED STATES IN SEMICONDUCTORS .1. NEW RESULTS USING AN OLD METHOD [J].

PANTELIDES, ST ;

SAH, CT .

PHYSICAL REVIEW B, 1974, 10 (02) :621-637