VARIATIONAL APPROACH TO QUASI-2-DIMENSIONAL HYDROGENIC IMPURITIES IN ARBITRARY MAGNETIC-FIELDS

被引：20

作者：

CHEN, R

CHENG, JP

LIN, DL

MCCOMBE, BD

GEORGE, TF

机构：

[1] WASHINGTON STATE UNIV, DEPT CHEM, PULLMAN, WA 99164 USA

[2] WASHINGTON STATE UNIV, DEPT PHYS, PULLMAN, WA 99164 USA

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 15期

关键词：

D O I：

10.1103/PhysRevB.44.8315

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Highly excited energy levels of a hydrogenic impurity atom confined in a quantum well are calculated variationally as functions of magnetic fields applied in the direction of growth. The trial wave functions are constructed on the basis of parity and nodal surface conservation, and behave correctly in both the low-field and high-field limits. With only two variational parameters for each state, all the levels associated with different subbands can, in principle, be obtained for the whole range of magnetic-field strengths. Transition energies for 1s-np (n = 2,3,4) transitions in GaAs/Ga0.7Al0.3As quantum wells are compared with far-infrared photoconductivity spectra up to 9 T with a well width of 125 angstrom. Good agreement is found in every case.

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页码：8315 / 8318

页数：4

相关论文

共 16 条

[1] COMMENTS ON THE IDENTIFICATION OF HIGH-ORDER SPECTRAL-LINES OF DONORS IN SEMICONDUCTORS IN INTERMEDIATE MAGNETIC-FIELDS [J].

ARMISTEAD, CJ ;

STRADLING, RA ;

WASILEWSKI, Z .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1989, 4 (07) :557-564

[2] 2-LEVEL AND 3-LEVEL RESONANT MEASUREMENTS OF IMPURITY-BOUND MAGNETOPOLARONS IN MULTIPLE-QUANTUM-WELL STRUCTURES [J].

CHENG, JP ;

MCCOMBE, BD ;

BROZAK, G .

PHYSICAL REVIEW B, 1991, 43 (11) :9324-9327

[3] CONFINEMENT EFFECTS ON THE LOW-FIELD-HIGH-FIELD CORRESPONDENCES OF HYDROGENIC IMPURITY STATES IN QUASI-2-DIMENSIONAL SYSTEMS [J].

CHENG, JP ;

MCCOMBE, BD .

PHYSICAL REVIEW B, 1990, 42 (12) :7626-7629

[4]

Dunn J. L., 1990, Materials Science Forum, V65-66, P117

[5] 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

[6] EXCITED-STATE SPECTROSCOPY OF CONFINED SHALLOW DONOR IMPURITIES IN A MULTI-QUANTUM-WELL [J].

GRIMES, RT ;

STANAWAY, MB ;

CHAMBERLAIN, JM ;

DUNN, JL ;

HENINI, M ;

HUGHES, OH ;

HILL, G .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 1990, 5 (04) :305-307

[7] BINDING OF SHALLOW DONOR IMPURITIES IN QUANTUM-WELL STRUCTURES [J].

JAROSIK, NC ;

MCCOMBE, BD ;

SHANABROOK, BV ;

COMAS, J ;

RALSTON, J ;

WICKS, G .

PHYSICAL REVIEW LETTERS, 1985, 54 (12) :1283-1286

[8] ELECTRON-TRANSPORT AND BAND-STRUCTURE OF GA1-XALXAS ALLOYS [J].

LEE, HJ ;

JURAVEL, LY ;

WOOLLEY, JC ;

SPRINGTHORPE, AJ .

PHYSICAL REVIEW B, 1980, 21 (02) :659-669

[9] INTERFACE-PHONON-MEDIATED MAGNETOPOLARONIC EFFECT ON IMPURITY TRANSITION ENERGIES IN QUANTUM-WELLS [J].

LIN, DL ;

CHEN, R ;

GEORGE, TF .

PHYSICAL REVIEW B, 1991, 43 (11) :9328-9331

[10] HYDROGENIC ENERGY-LEVELS IN 2 DIMENSIONS AT ARBITRARY MAGNETIC-FIELDS [J].

MACDONALD, AH ;

RITCHIE, DS .

PHYSICAL REVIEW B, 1986, 33 (12) :8336-8344