2-MAGNON RAMAN-SCATTERING IN A SPIN-DENSITY-WAVE ANTIFERROMAGNET

Authors
SCHONFELD F KAMPF AP MULLERHARTMANN E
Citation
F. Schonfeld et al., 2-MAGNON RAMAN-SCATTERING IN A SPIN-DENSITY-WAVE ANTIFERROMAGNET, Physica. B, Condensed matter, 230, 1997, pp. 1067-1069
Citations number
9
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
230
Year of publication
1997
Pages
1067 - 1069
Database
ISI
SICI code
0921-4526(1997)230:<1067:2RIASA>2.0.ZU;2-W
Abstract
We present the results for a model calculation of resonant two-magnon Raman scattering in a spin density wave antiferromagnet. The resonant enhancement of the two-magnon intensity is obtained from a microscopic analysis of the photon-magnon coupling vertex. By combining magnon-ma gnon interactions with 'triple resonance' phenomena in the vertex func tion the resulting intensity line shape is found to closely resemble t he measured two-magnon Raman signal in antiferromagnetic cuprates.