Institute of Physics, VAST   |   Center for Theoretical Physics   |   Center for Computational Physics
2nd International Workshop on Theoretical
and Computational Physics (IWTCP-2):
Modern methods and latest results in
particle physics, nuclear physics and astrophysics
Buon Ma Thuot, 28-31 July 2014

Programme

Conference Presentation

P.7 -- Poster, NCTP-39

Date: Tuesday, 29-07-2014

Time: 10h30 - 12h00

THE INFLUENCE OF ELECTROMAGNETIC WAVE ON THE MAGNETORESISTANCE IN DOPED SUPERLATTICE

NGUYEN QUANG BAU, NGUYEN DINH NAM

Faculty of Physics, Hanoi University of Science, Vietnam National University 334-Nguyen Trai, Thanh Xuan, Hanoi, Viet Nam

By using quantum kinetic equation method the analytic expression of the magnetoresistance in doped superlattice under the influence of Electromagnetic wave is obtained. The magnetoresistance depends on some parameters such as : the intensity of Electromagnetic wave , the magnetic field, the frequency of the Electromagnetic wave, the relaxation time of carier, the temperature and the doped concentration. Estimating numerical values for a GaAs:Si/GaAs:Be doped superlattice, these dependences are nonlinear and the magnetoresistance gets negative value. There are some differences from the case of magnetoresistance in the bulk semiconductor

Presenter: Nguyen Dinh Nam

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