Electron-hole long-range exchange interaction in semiconductor quantum dots

被引:24
作者
Goupalov, SV [1 ]
Ivchenko, EL [1 ]
机构
[1] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia
关键词
D O I
10.1016/S0022-0248(97)00671-4
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
We have calculated the exchange splitting of the ground-state exciton level in cubic and hexagonal nanocrystals of the spherical shape. The theory makes allowance for both the analytic (or short-range) and nonanalytic (long-range) electron-hole exchange contributions. The results are compared with experimental data obtained on nanometer-size CdSe crystallites. (C) 1998 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:393 / 397
页数:5
相关论文
共 16 条
[1]   EXCHANGE INTERACTION AND POLARITON EFFECTS IN QUANTUM-WELL EXCITONS [J].
ANDREANI, LC ;
BASSANI, F .
PHYSICAL REVIEW B, 1990, 41 (11) :7536-7544
[2]  
BIR GL, 1974, SYMMETRY STRAIN INDU, pCH4
[3]   Enhancement of electron-hole exchange interaction in CdSe nanocrystals: A quantum confinement effect [J].
Chamarro, M ;
Gourdon, C ;
Lavallard, P ;
Lublinskaya, O ;
Ekimov, AI .
PHYSICAL REVIEW B, 1996, 53 (03) :1336-1342
[4]   UNIFIED THEORY OF SYMMETRY-BREAKING EFFECTS ON EXCITONS IN CUBIC AND WURTZITE STRUCTURES [J].
CHO, K .
PHYSICAL REVIEW B, 1976, 14 (10) :4463-4482
[5]   THEORY OF DEGENERATE 1S EXCITONS IN ZINCBLENDE-TYPE CRYSTALS IN A MAGNETIC-FIELD - EXCHANGE INTERACTION AND CUBIC ANISOTROPY [J].
CHO, K ;
SUGA, S ;
DREYBRODT, W ;
WILLMANN, F .
PHYSICAL REVIEW B, 1975, 11 (04) :1512-1521
[6]   LONGITUDINAL AND TRANSVERSE EXCITONS IN SEMICONDUCTORS [J].
DENISOV, MM ;
MAKAROV, VP .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1973, 56 (01) :9-59
[7]   Band-edge exciton in quantum dots of semiconductors with a degenerate valence band: Dark and bright exciton states [J].
Efros, AL ;
Rosen, M ;
Kuno, M ;
Nirmal, M ;
Norris, DJ ;
Bawendi, M .
PHYSICAL REVIEW B, 1996, 54 (07) :4843-4856
[8]  
IVCHENKO EL, 1995, SUPERLATTCIES HETERO, pCH5
[9]   ADDITIONAL WAVES AND FABRY-PEROT INTERFERENCE OF PHOTOEXCITONS (POLARITONS) IN THIN II-VI CRYSTALS [J].
KISELEV, VA ;
RAZBIRIN, BS ;
URALTSEV, IN .
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, 1975, 72 (01) :161-172
[10]   EXCITON SPIN DYNAMICS IN QUANTUM-WELLS [J].
MAIALLE, MZ ;
SILVA, EADE ;
SHAM, LJ .
PHYSICAL REVIEW B, 1993, 47 (23) :15776-15788