The ground- and first-excited states of magnetopolarons in two-dimensional quantum dots for all coupling strengths |
| |
Authors: | BS Kandemir T Altanhan |
| |
Institution: | (1) Department of Physics, Faculty of Sciences, Ankara University, 06100 Tandoğan, Ankara, Turkey, TR |
| |
Abstract: | The ground- and first-excited state energies of a magnetopolaron in a two dimensional parabolic quantum dot are studied within
a variational calculation for all coupling strength. The Lee-Low-Pines-Huybrecht variational technique that is developed previously
for all coupling strength has been extented for polarons in a magnetic field. The dependence of the polaronic correction on
the magnetic field and the confinement length is investigated. The polarization potential and the renormalized cyclotron masses
as a function of electron-phonon coupling strength and the strength of both confinement potential and magnetic field are also
studied within the same approach.
Received 16 December 2002 / Received in final form 14 April 2003 Published online 4 June 2003
RID="a"
ID="a"e-mail: kandemir@science.ankara.edu.tr |
| |
Keywords: | PACS 73 63 Kv Quantum dots – 71 38 Fp Large or Fr?hlich polarons – 63 20 Kr Phonon-electron and phonon-phonon interactions |
本文献已被 SpringerLink 等数据库收录! |