Electron transport in electrically biased inverse parabolic double-barrier structure

Bati M., Sakiroglu S., Sokmen I.

CHINESE PHYSICS B, vol.25, no.5, 2016 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 5
  • Publication Date: 2016
  • Doi Number: 10.1088/1674-1056/25/5/057307
  • Journal Name: CHINESE PHYSICS B
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: inverse parabolic double-barrier structure, resonant tunneling, non-equilibrium Green's function, electric field, FIELD, SIMULATION, CONDUCTION, NANOSCALE, DIODES, WELLS
  • Dokuz Eylül University Affiliated: Yes

Abstract

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.