Spin-Dependent Electron Behaviour in Quantum Point Contacts and Dots

Abstract

We investigate theoretically the effect of spontaneous electron spin polarization in quantum point contacts and quantum dots. Self-consistent calculation process has been developed in the framework of Kohn-Sham LSDA scheme. The existence of the detected spin-polarized states in the low-density regime can be used to explain an anomalous 0.7-structure in the conductance of quantum point contacts. The properties of the potential device based on such an effect are briefly discussed.

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Document Details

Document Type
Technical Report
Publication Date
Jun 23, 2000
Accession Number
ADP013105

Entities

People

  • A. M. Bychkov
  • I. I. Yakymenko
  • K. F. Berggren

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Calorific Value
  • Dielectric Permittivity
  • Electron Density
  • Electron Gas
  • Electrons
  • Energy
  • Hard Copy
  • Heterojunctions
  • Low Density
  • Magnetic Fields
  • Magnetic Properties
  • Materials
  • Polarization
  • Quantum Dots
  • Quantum Wires
  • Spatial Distribution
  • Technical Information Centers

Fields of Study

  • Physics

Readers

  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene
  • Quantum Computing
  • Quantum Science - Quantum Dots