Switching of Current Spin Polarization by Electron-Phonon Interaction in a Quantum Dot Device

2013 ◽  
Vol 174 (3-4) ◽  
pp. 148-158 ◽  
Author(s):  
Yu Guo ◽  
Jun Zheng ◽  
Feng Chi
Keyword(s):  
Quantum Dot ◽  
Spin Polarization ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Current Spin Polarization

scholarly journals Single-Electron-Phonon Interaction in a Suspended Quantum Dot Phonon Cavity

2004 ◽  
Vol 92 (4) ◽  
Author(s):  
E. M. Weig ◽  
R. H. Blick ◽  
T. Brandes ◽  
J. Kirschbaum ◽  
W. Wegscheider ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Single Electron ◽  
Phonon Interaction ◽  
Electron Phonon Interaction

Electron-phonon interaction in a cylindrical quantum dot

1997 ◽  
Vol 229 (3-4) ◽  
pp. 375-382 ◽  
Author(s):  
Wai-Sang Li ◽  
Chuan-Yu Chen
Keyword(s):  
Quantum Dot ◽  
Phonon Interaction ◽  
Electron Phonon Interaction

Effect of electron–phonon interaction on Fano interference in the parallel double quantum dot structure

2008 ◽  
Vol 245 (6) ◽  
pp. 1175-1180 ◽  
Author(s):  
Weijiang Gong ◽  
Yisong Zheng ◽  
Jie Wang ◽  
Tianquan Lü
Keyword(s):  
Quantum Dot ◽  
Double Quantum ◽  
Phonon Interaction ◽  
Electron Phonon Interaction ◽  
Double Quantum Dot ◽  
Fano Interference

THE INFLUENCE OF ELECTRIC FIELD ON THE GROUND-STATE LIFETIME OF POLARON IN A PARABOLIC QUANTUM DOT

2011 ◽  
Vol 25 (03) ◽  
pp. 203-210
Author(s):  
WEI-PING LI ◽  
JI-WEN YIN ◽  
YI-FU YU ◽  
JING-LIN XIAO
Keyword(s):  
Quantum Dot ◽  
Electric Field ◽  
Ground State Energy ◽  
Ground State ◽  
State Energy ◽  
Phonon Coupling ◽  
Phonon Interaction ◽  
Strong Electron ◽  
Electron Phonon Interaction ◽  
Parabolic Quantum Dot

The ground-state energy of polaron was obtained with strong electron-LO-phonon coupling by using a variational method of the Pekar type in a parabolic quantum dot (QD). Quantum transition occurs in the quantum system due to the electron-phonon interaction and the influence of temperature. That is the polaron transition from the ground-state to the first-excited state after absorbing a LO-phonon and it causes the changing of the polaron lifetime. Numerical calculations are performed and the results illustrate the relations of the ground-state lifetime of the polaron on the ground-state energy of polaron, the electric field strength, the temperature, the electron-LO-phonon coupling strength and the confinement length of the quantum dot.

Sign in / Sign up

Export Citation Format

Share Document