Anomalous behaviors of spin waves studied by inelastic light scattering

Hua Yi Hou, Ming Yang, Jin Qiu, In Sang Yang, Xiang Bai Chen

Research output: Contribution to journalArticlepeer-review

5 Scopus citations

Abstract

Magnonics, an emerging research field, aims to control and manipulate spin waves in magnetic materials and structures. However, the current understanding of spin waves remains quite limited. This review attempts to provide an overview of the anomalous behaviors of spin waves in various types of magnetic materials observed thus far by inelastic light scattering experiments. The anomalously large asymmetry of anti-Stokes to Stokes intensity ratio, broad linewidth, strong resonance effect, unique polarization selection, and abnormal impurity dependence of spin waves are discussed. In addition, the mechanisms of these anomalous behaviors of spin waves are proposed.

Original languageEnglish
Article number357
JournalCrystals
Volume9
Issue number7
DOIs
StatePublished - Jul 2019

Keywords

  • Anti-Stokes
  • Linewidth
  • Magnonic crystal
  • Polarization
  • Resonance
  • Spin wave

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