publication . Other literature type . Article . 1999

Magnon Linewidth Broadening due to Magnon-Phonon Interactions in Colossal Magnetoresistance Manganites

Nobuo Furukawa;
Open Access
  • Published: 15 Aug 1999
  • Publisher: Physical Society of Japan
Abstract
In order to study the magnetic excitation behaviors in colossal magnetoresistance manganites, a magnon-phonon interacting system is investigated. Sudden broadening of the magnon linewidth is obtained when a magnon branch crosses over an optical phonon branch. Onset of the broadening is approximately determined by the magnon density of states. Anomalous magnon damping at the Brillouin zone boundary observed in low Curie temperature manganites is explained.
Persistent Identifiers
Subjects
arXiv: Condensed Matter::Strongly Correlated ElectronsCondensed Matter::Materials ScienceCondensed Matter::Other
free text keywords: General Physics and Astronomy, Phonon, Condensed matter physics, Colossal magnetoresistance, Magnon, Density of states, Brillouin zone, Giant magnetoresistance, Curie temperature, Physics, Laser linewidth
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