Theory of highly anisotropic ferromagnets. II. Renormalization of magnon energies in the heavy rare earths

Journal Article · Tue Dec 11 00:00:00 EST 1973 · J. Phys., C (London), v. 6, no. 24, pp. 3719-3736

DOI:https://doi.org/10.1088/0022-3719/6/24/029· OSTI ID:4317736

Brooks, M S; Egami, T

Magnon energies, renormalized in a Hartree -- Fock approximation, were derived. The model includes isotropic and anisotropic exchange interactions, a crystal field of hcp symmetry, magnetoelastic interactions, and dipolar interactions. The novel feature of the theory is a modification of magnon renormalization by the ellipticity of spin precession that is a characteristic of highly anisotropic ferromagnets. (auth)

• Research Organization: Portsmouth Polytechnic, Eng.
• NSA Number: NSA-29-018904
• OSTI ID: 4317736
• Journal Information: J. Phys., C (London), v. 6, no. 24, pp. 3719-3736, Other Information: Orig. Receipt Date: 30-JUN-74; Bib. Info. Source: UK (United Kingdom (sent to DOE from))
• Country of Publication: United Kingdom
• Language: English

Related Subjects

N50230* -Metals
Ceramics
& Other Materials-Metals & Alloys-Properties
Structure & Phase Studies
*FERROMAGNETIC MATERIALS- MAGNONS
*MAGNONS- RARE EARTHS
*RARE EARTHS- MAGNONS
ANISOTROPY
CRYSTAL FIELD
ENERGY
EXCHANGE INTERACTIONS
HARTREE-FOCK METHOD
MAGNETOSTRICTION
MATHEMATICAL MODELS
RENORMALIZATION
SPIN WAVES