FANO RESONANCES DUE TO COUPLED MAGNETOEXCITON AND CONTINUUM STATES IN BULK SEMICONDUCTORS

被引：73

作者：

GLUTSCH, S ^{[1
]}

SIEGNER, U ^{[1
]}

MYCEK, MA ^{[1
]}

CHEMLA, DS ^{[1
]}

机构：

[1] UNIV CALIF BERKELEY,LAWRENCE BERKELEY LAB,DIV MAT SCI,BERKELEY,CA 94720

来源：

PHYSICAL REVIEW B | 1994年 / 50卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.50.17009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have observed Fano resonances in linear absorption experiments on GaAs under a magnetic field. In a bulk semiconductor in a magnetic field, Fano interference is the result of the coupling of higher-order magnetoexcitons and energetically degenerate one-dimensional continuum states. We show that these experimental findings can be described by the model of a two-band semiconductor in the effective-mass approximation. Numerical calculations of the linear magnetoabsorption are presented that demonstrate that the coupling between magnetoexcitons and continuum states is due to Coulomb interaction. © 1994 The American Physical Society.

引用

页码：17009 / 17017

页数：9

共 24 条

[1] THEORY OF MAGNETIC-FIELD EFFECTS ON CRITICAL-POINTS [J].

BASSANI, F ;

BALDERESCHI, A .

SURFACE SCIENCE, 1973, 37 (01) :304-327

[2]

Becker W., 1987, 18th International Conference on the Physics of Semiconductors, P1713

[3] VALENCE-BAND COUPLING AND FANO-RESONANCE EFFECTS ON THE EXCITONIC SPECTRUM IN UNDOPED QUANTUM-WELLS [J].

BROIDO, DA ;

SHAM, LJ .

PHYSICAL REVIEW B, 1986, 34 (06) :3917-3923

[4] OPTICAL CHARACTERIZATION OF GAAS/ALGAAS NANOSTRUCTURES FABRICATED BY FOCUSED LASER-BEAM INDUCED THERMAL INTERDIFFUSION [J].

BRUNNER, K ;

ABSTREITER, G ;

WALTHER, M ;

BOHM, G ;

TRANKLE, G .

SURFACE SCIENCE, 1992, 267 (1-3) :218-222

[5] FINITE-DIFFERENCE-PSEUDOPOTENTIAL METHOD - ELECTRONIC-STRUCTURE CALCULATIONS WITHOUT A BASIS [J].

CHELIKOWSKY, JR ;

TROULLIER, N ;

SAAD, Y .

PHYSICAL REVIEW LETTERS, 1994, 72 (08) :1240-1243

[6] EVIDENCE OF THE AUTO-IONIZING CHARACTER OF BIEXCITONS [J].

CHEMLA, DS ;

MARUANI, A ;

BATIFOL, E .

PHYSICAL REVIEW LETTERS, 1979, 42 (16) :1075-1079

[7] THEORY OF LINE-SHAPES OF EXCITON RESONANCES IN SEMICONDUCTOR SUPERLATTICES [J].

CHU, HY ;

CHANG, YC .

PHYSICAL REVIEW B, 1989, 39 (15) :10861-10871

[8] INTENSITY OF OPTICAL ABSORPTION BY EXCITONS [J].

ELLIOTT, RJ .

PHYSICAL REVIEW, 1957, 108 (06) :1384-1389

[9] PARAMETRIZATION OF S-MAGNETOEXCITON AND P-MAGNETOEXCITON IN QUANTUM-WELLS [J].

ENGBRING, J ;

ZIMMERMANN, R .

PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1992, 172 (02) :733-746

[10] EFFECTS OF CONFIGURATION INTERACTION ON INTENSITIES AND PHASE SHIFTS [J].

FANO, U .

PHYSICAL REVIEW, 1961, 124 (06) :1866-&

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