The Dependence of the Acoustomagnetoelectric Current on the Parameters of a Cylindrical Quantum Wire with an Infinite Potential in the Presence of an External Magnetic Field
The acoustomagnetoelectric effect in a cylindrical quantum wire with an infinite potential in the presence of an external magnetic field is investigated by using Boltzmann kinetic equation for an acoustic wave whose wavelength λ = 2π/q is smaller than the mean free path l of the electrons and hypersound in the region ql 》 1,(where q is the acoustic wave number).The analytic expression for the acoustomagnetoelectric current Iame is calculated in the case: relaxation time of momentum Τ is constant approximation and degenerates electrons gas.The nonlinear dependence of the expression for the acoustomagnetoelectric current Iame on the acoustic wave numbers q and on the parameters of the cylindrical quantum wires is obtained.Numerical computations are performed for AlGaAs/GaAs cylindrical quantum wire with an infinite potential.The results are compared with the normal bulk semiconductors and the superlattices to show the values of the acoustomagnetoelectric current Iame in the cylindrical quantum wire are different than they are in the normal bulk semiconductors and the superlattices.
N.Q.Bau N.V.Nhan N.V.Nghia
Department of Physics,College of Natural Sciences,Hanoi National University,Hanoi,Vietnam Department of Physics,Academy of Defence Force,Air Force,Hanoi,Vietnam Department of Physics,Water Resources University,Hanoi,Vietnam
国际会议
Progress in Electromagnetics Research Symposium 2011(2011年电磁学研究新进展学术研讨会)
苏州
英文
1452-1456
2011-09-01（万方平台首次上网日期，不代表论文的发表时间）