Fundamentals of Magnetic Interactions: New Approaches to Theory and Experiment.

Abstract

Optically induced changes in magnetization (optomagnetism) have been observed for CdCr2Se4 and several other magnetic semiconductors. The effect has never been adequately explained although the most likely cause is RKKY coupling through optically excited carriers. Optomagnetism and other manifestations of carrier-spin interaction are intimately related to the electronic structure of these materials, particularly the narrow d and f bands. Realistic theories of these effects are lacking, in part because of the controversy surrounding the electronic structure of many of these materials.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1981
Accession Number
ADA105003

Entities

People

  • A. Lempicki
  • B. C. Mccollum
  • E. J. Johnson
  • R. W. Davies
  • W. J. Miniscalco

Tags

Communities of Interest

  • Advanced Electronics

DTIC Thesaurus Topics

  • Band Structures
  • Band Theory Of Solids
  • Crystal Structure
  • Crystals
  • Curie Temperature
  • Dye Lasers
  • Energy Bands
  • Exclusion Principle
  • Liquid Dye Lasers
  • Magnetic Properties
  • Materials
  • Measurement
  • Radiation
  • Semiconductors
  • Solid State Physics
  • Spin-Orbit Interaction
  • Valence Bands

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.

Technology Areas

  • Microelectronics
  • Microelectronics - Graphene