Far-Infrared Magnetic-Field-Dependent Resonances in Small Unsupported Bismuth Particles

Abstract

This reprint reports on far-infrared (FIR) magneto-optical absorption by small (approx. 0.5 micrometers mean diameter) Bi particles. The problem of the interaction of electromagnetic radiation with a small sphere in a magnetic field (the gyrotropic sphere) has attracted recent interest. Applications include the microwave properties of powdered semiconductors and the electrodynamic properties of electron-hole droplets. Bi particles have important advantages as a model system. There is less uncertainty in the carrier density relative to semiconductors because doping is not required. The size of the particles can be controlled. Bi particles should not deform much in a magnetic field. Also, the properties of bulk Bi are well known and available as input to models.

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Document Details

Document Type
Technical Report
Publication Date
Jan 15, 1990
Accession Number
ADA218369

Entities

People

  • R. E. Sherriff
  • R. P. Devaty

Organizations

  • University of Pittsburgh

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Absorption Coefficients
  • Electric Fields
  • Electromagnetic Fields
  • Electromagnetic Radiation
  • Electron Holes
  • Electron Microscopy
  • Equations
  • Far Infrared Radiation
  • Frequency
  • Geometry
  • Long Wavelengths
  • Magnetic Dipoles
  • Magnetic Fields
  • Measurement
  • Orientation (Direction)
  • Solid State Physics
  • Waves

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Plasma Physics / Magnetohydrodynamics
  • Quantum Dot Semiconductor Device Photonics and Graphene Optoelectronic Materials and THz Physics.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene