Effect of Hydrostatic Pressure on Interband Transitions in Coupled Quantum Wires  

作　　者：E. Kasapoglu M. Günes I Sokmen 

机构地区：[1]Department of Physics, Cumhuriyet University, 58140 Sivas, Turkey [2]Department of Physics, Dokuz Eylül University, 35160 izmir, Turkey

出　　处：《Chinese Physics Letters》2007年第4期1058-1061,共4页中国物理快报（英文版）

摘　　要：We calculate the exciton binding energy and interband optical absorption in a rectangular coupled quantum wire under the hydrostatic pressure in the effective-mass approximation, using the variational approach. It is found that the interband optical absorption strongly depend on the hydrostatic pressure and the coupling parameter, and that the magnitude of the absorption coefficient for the HH1-E1 transition in the coupled quantum wire is larger than that of the single quantum wire.We calculate the exciton binding energy and interband optical absorption in a rectangular coupled quantum wire under the hydrostatic pressure in the effective-mass approximation, using the variational approach. It is found that the interband optical absorption strongly depend on the hydrostatic pressure and the coupling parameter, and that the magnitude of the absorption coefficient for the HH1-E1 transition in the coupled quantum wire is larger than that of the single quantum wire.

关 键 词：APPLIED ELECTRIC-FIELD SHALLOW DONOR IMPURITIES WELL WIRES BINDING-ENERGIES OPTICAL-ABSORPTION MAGNETIC-FIELD GAAS TEMPERATURE DEPENDENCE THRESHOLD 

分 类 号：O413[理学—理论物理]