Hydrostatic Pressure and Magnetic Field Effects on the Ezciton States in Vertically Coupled GaAs-(Ga, Al) As Quantum Dots
The variational procedure, in the effective-mass and parabolic-band approximations, is used in order to investigate the combined effects of hydrostatic pressure and in-planedirection-applied magnetic field on the exciton states in vertically coupled GaAs-(Ga, Al) As quantum dots. Calculations are performed for two cylindrical-shape quantum dots. The exciton envelope wave function is obtained through a variational procedure using a hydrogenic 1 s-like wave function and an expansion in a complete set of trigonometric functions for the electron and hole wave functions. The anticrossing effects on the dispersion with applied magnetic field and hydrostatic pressure of the photoluminescence peaks associated with direct and indirect excitons have been considered.
M.E.Mora-Ramos A.H.Rodríguez S.Y.L(o)pez C.A.Duque
Universidad Autónoma del Estado de Morelos,Ave.Universidad 1001,62209 Cuernavaca,México Universidad Autónoma de la Ciudad de México,Plantel Iztapalapa,México DF,México Facultad de Educación,Universidad de Antioquia,AA 1226,Medellín,Colombia Instituto de Física,Universidad de Antioquia,AA 1226,Medellín,Colombia;Instituto de Física,Unicamp,C
国际会议
Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)
杭州
英文
1-4
2008-03-24（万方平台首次上网日期，不代表论文的发表时间）