Relativistic Wigner functions in transition metal dichalcogenides

D. K. Ferry, I. Welland

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

The Wigner function has been proven useful in many studies of transport as well as quantum coherence in experimental situations. When we deal with Dirac bands, this function becomes a matrix function. Here, we study the Wigner matrix for a situation in a transition metal dichacogenides with a dominant spin–orbit interaction. Here, we discuss (Formula presented.), where the bands can be described with the Dirac equation, and a unique spin-valley coupling arises. This leads to a 2X2 Wigner matrix for either the conduction band or the valence band. The off-diagonal elements display interference phenomena from the two diagonal components.

Original languageEnglish (US)
Pages (from-to)1-8
Number of pages8
JournalJournal of Computational Electronics
DOIs
StateAccepted/In press - Oct 19 2017

Fingerprint

Wigner Function
Transition metals
Metals
transition metals
matrices
Dirac equation
Valence bands
Conduction bands
valleys
conduction bands
Matrix Function
Dirac Equation
Conduction
Paul Adrien Maurice Dirac
valence
interference
Interference
Interaction
interactions

Keywords

  • Devices
  • Electron transport
  • Nanostructures
  • Phonon scattering

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Modeling and Simulation
  • Electrical and Electronic Engineering

Cite this

Relativistic Wigner functions in transition metal dichalcogenides. / Ferry, D. K.; Welland, I.

In: Journal of Computational Electronics, 19.10.2017, p. 1-8.

Research output: Contribution to journalArticle

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