Superlattice Effects in Graphite Intercalation Compounds.

Abstract

Research is continuing into the Landau level condensation of a dense two-dimensional hole gas in a strong magnetic field, recently discovered in long-chain carbon bromine. The series of phase transitions, periodic in (inverse) magnetic field, produce a domain phase which is an ideal candidate for the study of nonlinear soliton (domain wall) dynamics. Study of a.c. coupling to a normal mode oscillation (bending mode) of the domain wall indicates chaotic behavior following a quasiperiodic route. A simple model is capable of explaining the observed lineshape of the susceptibility oscillations and unambiguously determining the Landau level bandwidth -- thereby pinpointing the field at which the strong two-dimensional limit occurs (no Landau level overlap). As the sample thickness is decreased, it is predicted that the system will transform into a charged-domain phase closely analogous to the quantum Hall effect.

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Document Details

Document Type
Technical Report
Publication Date
Apr 15, 1986
Accession Number
ADA177009

Entities

People

  • R. S. Markiewicz

Organizations

  • Northeastern University

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Bandwidth
  • Broadband
  • Charge Density
  • Dead Reckoning
  • Domain Walls
  • Dynamics
  • Electron Gas
  • Electrons
  • Energy
  • Energy Bands
  • Frequency
  • Hall Effect
  • Magnetic Fields
  • Phase Transformations
  • Students
  • Transitions
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Wave Propagation and Nonlinear Chaotic Dynamics.

Technology Areas

  • Quantum Computing