Exciton states in cylindrical nanowires

被引：27
作者：
Slachmuylders, A. F.
Partoens, B.
Magnus, W.
Peeters, F. M.
机构：
[1] Univ Antwerp, Dept Fis, B-2020 Antwerp, Belgium
[2] Interuniv Microelect Ctr, B-3001 Louvain, Belgium
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2006年 / 18卷 / 16期
关键词：
D O I：
10.1088/0953-8984/18/16/005
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The exciton ground state and excited state energies are calculated for a model system of an infinitely long cylindrical wire. The effective Coulomb potential between the electron and the hole is studied as function of the wire radius. Within the adiabatic approximation, we obtain 'exact' numerical results for the effective exciton potential and the lowest exciton energy levels which are fitted to simple analytical expressions. Furthermore, we investigated the influence of a magnetic field parallel to the nanowire on the effective potential and the exciton energy.
引用
收藏
页码：3951 / 3966
页数：16
相关论文
共 18 条
[1]  
ABRAMOWITZ M, 1970, HDB MATH FUNCTIONS, P295
[2]   EXCITONS AND BIEXCITONS IN SEMICONDUCTOR QUANTUM WIRES [J].
BANYAI, L ;
GALBRAITH, I ;
ELL, C ;
HAUG, H .
PHYSICAL REVIEW B, 1987, 36 (11) :6099-6104
[3]   Effective interaction for charge carriers confined in quasi-one-dimensional nanostructures [J].
Bednarek, S ;
Szafran, B ;
Chwiej, T ;
Adamowski, J .
PHYSICAL REVIEW B, 2003, 68 (04)
[4]   HYDROGENIC IMPURITIES IN QUANTUM WIRES IN THE PRESENCE OF A MAGNETIC-FIELD [J].
BRANIS, SV ;
LI, G ;
BAJAJ, KK .
PHYSICAL REVIEW B, 1993, 47 (03) :1316-1323
[5]   HYDROGENIC IMPURITY STATES IN QUANTUM DOTS AND QUANTUM WIRES [J].
CHUU, DS ;
HSIAO, CM ;
MEI, WN .
PHYSICAL REVIEW B, 1992, 46 (07) :3898-3905
[6]   Functional nanoscale electronic devices assembled using silicon nanowire building blocks [J].
Cui, Y ;
Lieber, CM .
SCIENCE, 2001, 291 (5505) :851-853
[7]   Nanowire nanosensors for highly sensitive and selective detection of biological and chemical species [J].
Cui, Y ;
Wei, QQ ;
Park, HK ;
Lieber, CM .
SCIENCE, 2001, 293 (5533) :1289-1292
[8]   Single-nanowire electrically driven lasers [J].
Duan, XF ;
Huang, Y ;
Agarwal, R ;
Lieber, CM .
NATURE, 2003, 421 (6920) :241-245
[9]   Nonvolatile memory and programmable logic from molecule-gated nanowires [J].
Duan, XF ;
Huang, Y ;
Lieber, CM .
NANO LETTERS, 2002, 2 (05) :487-490
[10]   EFFECT OF THE CONFINING POTENTIAL ON THE MAGNETOOPTICAL SPECTRUM OF A QUANTUM DOT [J].
GEERINCKX, F ;
PEETERS, FM ;
DEVREESE, JT .
JOURNAL OF APPLIED PHYSICS, 1990, 68 (07) :3435-3438
12