Electron transport in electrically biased inverse parabolic double-barrier structure  

作　　者：M Bati S Sakiroglu I Sokmen 

机构地区：[1]Physics Department, Faculty of Science, Dokuz Eylül University [2]Physics Department, Graduate School of Natural and Applied Sciences, Dokuz Eylül University [3]Physics Department, Faculty of Arts and Sciences, Recep Tayyip Erdogan University

出　　处：《Chinese Physics B》2016年第5期326-332,共7页中国物理B（英文版）

摘　　要：A theoretical study of resonant tunneling is carried out for an inverse parabolic double-barrier structure subjected to an external electric field. Tunneling transmission coefficient and density of states are analyzed by using the non-equilibrium Green＇s function approach based on the finite difference method. It is found that the resonant peak of the transmission coefficient, being unity for a symmetrical case, reduces under the applied electric field and depends strongly on the variation of the structure parameters.A theoretical study of resonant tunneling is carried out for an inverse parabolic double-barrier structure subjected to an external electric field. Tunneling transmission coefficient and density of states are analyzed by using the non-equilibrium Green＇s function approach based on the finite difference method. It is found that the resonant peak of the transmission coefficient, being unity for a symmetrical case, reduces under the applied electric field and depends strongly on the variation of the structure parameters.

关 键 词：inverse parabolic double-barrier structure resonant tunneling non-equilibrium Green＇s function electric field 

分 类 号：O469[理学—凝聚态物理]