Electron spin resonance modes in a spin-glass

S. E. Barnes

doi:10.1016/0378-4363(81)90690-2

Electron spin resonance modes in a spin-glass

S. E. Barnes

Physics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The microscopic Hamiltonian for a spin-glass is diagonalized using the Holstein-Primakoff and Bogoliubov transformations. Both an external, Zeeman, and internal anisotropy field are included. The Zeeman energy enters the resonance condition with an extra factor of one-half which is shown to be of geometrical origin. For single ion anisotropy the resonance condition is angular dependent. It is implied that single crystal ESR measurements will yield information about the nature of the anisotropy energy in a spin-glass.

Original language	English (US)
Pages (from-to)	771-772
Number of pages	2
Journal	Physica B+C
Volume	108
Issue number	1-3
DOIs	https://doi.org/10.1016/0378-4363(81)90690-2
State	Published - Jan 1 1981

ASJC Scopus subject areas

Engineering(all)

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AB - The microscopic Hamiltonian for a spin-glass is diagonalized using the Holstein-Primakoff and Bogoliubov transformations. Both an external, Zeeman, and internal anisotropy field are included. The Zeeman energy enters the resonance condition with an extra factor of one-half which is shown to be of geometrical origin. For single ion anisotropy the resonance condition is angular dependent. It is implied that single crystal ESR measurements will yield information about the nature of the anisotropy energy in a spin-glass.

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