QUANTUM CONFINEMENT OF EXCITONS IN THE SPIN-ORBIT-SPLIT-OFF BAND IN ZNSE/ZNS STRAINED-LAYER SUPERLATTICES

被引：7

作者：

ADACHI, S ^{[1
]}

TAGUCHI, T ^{[1
]}

机构：

[1] OSAKA UNIV,FAC ENGN,DEPT ENGN,SUITA,OSAKA 565,JAPAN

来源：

PHYSICAL REVIEW B | 1991年 / 44卷 / 19期

关键词：

D O I：

10.1103/PhysRevB.44.10633

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the observation of two-dimensional (2D) electronic states confined in the spin-orbit-split-off band in ZnSe/ZnS strained-layer superlattices. The steplike absorption edge at the E0 + DELTA-0 gap and the corresponding 2D exciton peak have been clearly identified in spectroscopic-ellipsometry spectra. The 2D-exciton Rydberg energy obtained is about 160 meV, which is considerably larger than that at the E0 + DELTA-0 gap of bulk ZnSe (approximately 40 meV). Calculated steplike-edge energies using the model-solid approach and the Kronig-Penney model agree well with the experimental observations.

引用

页码：10633 / 10636

页数：4

共 23 条

[1] MODEL DIELECTRIC-CONSTANTS OF GAP, GAAS, GASB, INP, INAS, AND INSB [J].

ADACHI, S .

PHYSICAL REVIEW B, 1987, 35 (14) :7454-7463

[2] EXCITONIC EFFECTS IN THE OPTICAL-SPECTRUM OF GAAS [J].

ADACHI, S .

PHYSICAL REVIEW B, 1990, 41 (02) :1003-1013

[3] OPTICAL-PROPERTIES OF ALXGA1-XAS ALLOYS [J].

ADACHI, S .

PHYSICAL REVIEW B, 1988, 38 (17) :12345-12352

[4] MODEL DIELECTRIC-CONSTANTS OF SI AND GE [J].

ADACHI, S .

PHYSICAL REVIEW B, 1988, 38 (18) :12966-12976

[5] OPTICAL-PROPERTIES OF IN1-XGAXASYP1-Y ALLOYS [J].

ADACHI, S .

PHYSICAL REVIEW B, 1989, 39 (17) :12612-12621

[6] EFFECTS OF THE INDIRECT TRANSITIONS ON OPTICAL DISPERSION-RELATIONS [J].

ADACHI, S .

PHYSICAL REVIEW B, 1990, 41 (06) :3504-3508

[7] OPTICAL DISPERSION-RELATIONS FOR ALSB FROM E = O TO 6.0 EV [J].

ADACHI, S .

JOURNAL OF APPLIED PHYSICS, 1990, 67 (10) :6427-6431

[8] OPTICAL-PROPERTIES OF ZNSE [J].

ADACHI, S ;

TAGUCHI, T .

PHYSICAL REVIEW B, 1991, 43 (12) :9569-9577

[9] TRANSITIONS TO CONFINED STATES OF THE SPLIT-OFF BAND IN GAAS-(AL,GA) AS MULTIPLE-QUANTUM-WELL HETEROSTRUCTURES [J].

DUGGAN, G ;

RALPH, HI ;

DAWSON, P ;

MOORE, KJ ;

FOXON, CTB ;

NICHOLAS, RJ ;

SINGLETON, J ;

ROGERS, DC .

PHYSICAL REVIEW B, 1987, 35 (14) :7784-7786

[10] INTERBAND-TRANSITIONS OF THIN-LAYER GAAS/ALAS SUPERLATTICES [J].

GARRIGA, M ;

CARDONA, M ;

CHRISTENSEN, NE ;

LAUTENSCHLAGER, P ;

ISU, T ;

PLOOG, K .

PHYSICAL REVIEW B, 1987, 36 (06) :3254-3258

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