Local Density of States in Double-Barrier Resonant Tunneling Structures.

Abstract

We calculate the local density of states between the barriers of a double-barrier resonant tunneling structure within the context of a simplified model. As the area of the barriers increases, there is a smooth crossover in the density of states from a three-dimensional square root of energy behavior to a two dimensional step-like behavior. The local one-dimensional density of states corresponding to a fixed electron momentum transverse to the barriers is also calculated and shows sharp peaks at energies corresponding to the quasi-bound states between the wells. The width of the lowest quasi-bound state is computed as a function of barrier area. Keywords include: Quantum well, Microelectronics, Density of states, Resonant tunneling, and Gallium arsenide.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1988
Accession Number
ADA190673

Entities

People

  • Clyde A. Morrison
  • John D. Bruno
  • Ralph G. Hay
  • Thomas B. Bahder

Organizations

  • Harry Diamond Laboratories

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Delta Functions
  • Electrical Properties
  • Electron Energy
  • Electron Gas
  • Electrons
  • Equations
  • Free Electrons
  • Military Research
  • Momentum
  • New York
  • Quantum Numbers
  • Quantum Tunneling
  • Quantum Wells
  • Square Roots
  • Three Dimensional
  • Tunneling
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Mathematics or Statistics
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing