Defect enriched electronic properties of group IV 2D systems

Abstract

The PI investigated the rich magneto-electronic properties of AA-bottom-top (bt) bilayer silicene using a generalized tight-binding model. The electronic structure exhibits two pairs of oscillatory energy bands in which the lowest conduction and highest valence states of the low-lying pair are away from the K point. The quantized Landau levels (LLs) are classified into various separated groups by the localization behaviors of spatial distributions. The LLs in the vicinity of Fermi energy do not present simple wave function modes which are quite different from other two-dimensional systems. The geometry symmetry, intralayer and interlayer atomic interactions, and effect of a perpendicular magnetic field are responsible for the peculiar LL energy spectra in AA-bt bilayer silicene. In the PIs work, they provide a better understanding of the diverse magnetic quantization phenomena in 2D condensed-matter materials.

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Document Details

Document Type
Technical Report
Publication Date
May 20, 2020
Accession Number
AD1106314

Entities

People

  • Ming-fa Lin

Organizations

  • National Cheng Kung University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Band Structures
  • Electric Fields
  • Energy Bands
  • Graphene
  • Magnetic Fields
  • Materials
  • Phase Transformations
  • Physical Properties
  • Probability Distributions
  • Quantum Properties
  • Semiconductors
  • Spin-Orbit Interaction
  • Subatomic Particles
  • Transport Properties
  • Two-Dimensional Materials
  • Universities

Fields of Study

  • Physics

Readers

  • Nanofabrication and Microfabrication.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene