Anomalous Behaviors of Spin Waves Studied by Inelastic Light Scattering

Autor: Hua-Yi Hou, Ming Yang, Jin Qiu, In-Sang Yang, Xiang-Bai Chen
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Crystals, Vol 9, Iss 7, p 357 (2019)
Druh dokumentu: article
ISSN: 2073-4352
DOI: 10.3390/cryst9070357
Popis: 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.
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