Anomalous Behaviors of Spin Waves Studied by Inelastic Light Scattering
- 주제(키워드) spin wave , anti-Stokes , linewidth , resonance , polarization , magnonic crystal
- 주제(기타) Crystallography
- 주제(기타) Materials Science, Multidisciplinary
- 등재 SCIE, SCOPUS
- OA유형 Green Submitted, gold
- 발행기관 MDPI
- 발행년도 2019
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000161366
- 본문언어 영어
- Published As http://dx.doi.org/10.3390/cryst9070357
초록/요약
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 e ff ect, 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.
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