Superexchange,

Abstract

The theory of superexchange couplings in ionic solids is reviewed using a configuration-interaction approach. A discussion is given of the origin of the Kanamori-Goodenough (KG) rules taking into account lack of orthogonalization between atomic orbitals. It is shown that this effect can reverse the sign expected from the KG rules. Contact is made with the theory of Anderson, and his potential and kinetic exchange contributions are identified within the configuration interaction picture. The systematics of superexchange interactions are investigated for d3 ions in the chalcogenides, and recent experimental work is cited in support of predictions. (Author)

Document Details

Document Type
Technical Report
Publication Date
Jan 01, 1971
Accession Number
AD0736878

Entities

People

  • Nai Li Huang
  • R. Orbach

Organizations

  • University of California, Los Angeles

Tags

DTIC Thesaurus Topics

  • Atomic Orbitals
  • Atomic Properties
  • Atomic Structure
  • Coupling (Interaction)
  • Couplings
  • Fittings

Fields of Study

  • Physics

Readers

  • Materials Science and Engineering.
  • Plasma Physics / Magnetohydrodynamics
  • Systems Analysis and Design

Technology Areas

  • Space