Accession Number:

AD0781419

Title:

Elementary Excitation Spectrum of the Heisenberg Ferromagnet,

Descriptive Note:

Corporate Author:

NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF CHEMISTRY

Personal Author(s):

• Lam,J.
• Mavroyannis,C.

Report Date:

1973-07-24

Pagination or Media Count:

18.0

Abstract:

The method of thermodynamic two-time retarded Green function is applied to calculate the elementary excitation spectrum of a simple cubic Heisenberg ferromagnet. An expression for the spin-wave self-energy operator is obtained in terms of the three-particle Green function. Modified author abstract

Descriptors:

• *FERROMAGNETISM
• MATHEMATICAL MODELS
• GREENS FUNCTIONS
• MAGNONS
• CANADA

Subject Categories:

• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE