The cyclotron resonance of impurity magnetopolarons in two-dimensional quantum dots for all coupling strengths

被引:8
作者
Chen, Shi-Hua [1 ]
机构
[1] Huzhou Vocat Technol Coll, Dept Elect Engn, Huzhou 313000, Peoples R China
关键词
PATH-INTEGRAL APPROACH; AXIAL MAGNETIC-FIELD; BOUND POLARON; HYDROGENIC IMPURITIES; OPTICAL POLARON; EXCITED-STATES; ENERGY; ELECTRON; WELL;
D O I
10.1016/j.physe.2010.12.002
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Cyclotron resonance of magnetopolarons bound to a Coulomb impurity in a two-dimensional (2D) parabolic quantum dot (QD) is studied within a variational calculation for all coupling strengths. The Lee-Low-Pines-Huybrecht variational technique that was developed previously for all coupling strengths has been extended for polarons in a magnetic field. The dependence of the cyclotron resonance masses on the magnetic field, the confinement length, the electron-phonon coupling strength and the Coulomb binding parameter is investigated. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码:1007 / 1010
页数:4
相关论文
共 25 条
[1]   THE CYCLOTRON-RESONANCE OF A 3-DIMENSIONAL IMPURITY MAGNETOPOLARON IN THE PRESENCE OF A STRONG PARABOLIC POTENTIAL [J].
AUYEUNG, TC ;
KHO, SL ;
GU, SW ;
HONG, LH ;
WONG, EMC .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1994, 6 (34) :6761-6772
[2]   FEYNMAN-HAKEN PATH-INTEGRAL APPROACH FOR THE TWO-DIMENSIONAL SURFACE OPTICAL POLARON BOUND TO A COULOMB IMPURITY [J].
BHATTACHARYA, M ;
CHATTERJEE, A ;
MITRA, TK .
PHYSICAL REVIEW B, 1989, 39 (12) :8351-8358
[3]   Thickness effect on impurity-bound polaronic energy levels in a parabolic quantum dot in magnetic fields [J].
Chen, CY ;
Jin, PW ;
Li, WS ;
Lin, DL .
PHYSICAL REVIEW B, 1997, 56 (23) :14913-14916
[4]   Ground and first excited state energies of impurity-bound polaron in a parabolic quantum dot [J].
Chen, Shi-Hua ;
Xiao, Jing-Lin .
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (09) :2941-2944
[5]   RESONANT TUNNELING THROUGH THE BOUND-STATES OF A SINGLE DONOR ATOM IN A QUANTUM-WELL [J].
DELLOW, MW ;
BETON, PH ;
LANGERAK, CJGM ;
FOSTER, TJ ;
MAIN, PC ;
EAVES, L ;
HENINI, M ;
BEAUMONT, SP ;
WILKINSON, CDW .
PHYSICAL REVIEW LETTERS, 1992, 68 (11) :1754-1757
[6]   INTERNAL EXCITED-STATE OF OPTICAL POLARON [J].
HUYBRECHTS, WJ .
JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1977, 10 (19) :3761-3768
[7]   Ground- and first-excited state energies of impurity magnetopolaron in an anisotropic quantum dot -: art. no. 054303 [J].
Kandemir, BS ;
Çetin, A .
PHYSICAL REVIEW B, 2002, 65 (05) :1-11
[8]   The ground- and first-excited states of magnetopolarons in two-dimensional quantum dots for all coupling strengths [J].
Kandemir, BS ;
Altanhan, T .
EUROPEAN PHYSICAL JOURNAL B, 2003, 33 (02) :227-232
[9]   THE SINGLE-ELECTRON TRANSISTOR [J].
KASTNER, MA .
REVIEWS OF MODERN PHYSICS, 1992, 64 (03) :849-858
[10]   THE MOTION OF SLOW ELECTRONS IN A POLAR CRYSTAL [J].
LEE, TD ;
LOW, FE ;
PINES, D .
PHYSICAL REVIEW, 1953, 90 (02) :297-302