CLASSICAL GROUND STATE SPIN CONFIGURATIONS IN THE CORUNDUM LATTICE,

Abstract

By means of the Luttinger-Tisza method, it is proven that a simple coplanar spiral always constitutes the classical ground state of the Heisenberg exchange Hamiltonian in magnetic corundum-type structures (i.e. Cr2O3 and alpha -Fe2O3). This proof is shown to independent of the values of the various exchange interactions. It therefore follows that the treatment of mixed systems in terms of averaged interactions cannot yield any other result. This conclusion is discussed in connection with the conical spirals observed by Cox, Takei and Shirane in the system Fe2xCr2-2xO3.

Document Details

Document Type
Technical Report
Publication Date
Oct 29, 1963
Accession Number
AD0612550

Entities

People

  • K. Dwight
  • N. Menyuk

Organizations

  • Massachusetts Institute of Technology

Tags

DTIC Thesaurus Topics

  • Atomic Energy Levels
  • Atomic Properties
  • Atomic Structure
  • Chemistry
  • Ground State

Fields of Study

  • Physics

Readers

  • Control Systems Engineering.
  • Materials Science and Engineering.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.