Plasmonics in Topological Insulators

Nanomaterials and Nanotechnology

Jia-Ming Liu¹  Kuang-Hsiung Wu¹  Yi-Ping Lai¹  I-Tan Lin¹ 

关键词: Topological Insulator;    Plasmons;    Spin-orbit Interaction;   

DOI  :  10.5772/58558

来源: InTech

【 摘 要 】

With strong spin-orbit coupling, topological insulators have an insulating bulk state, characterized by a band gap, and a conducting surface state, characterized by a Dirac cone. Plasmons in topological insulators show high frequency-tunability in the mid-infrared and terahertz spectral regions with transverse spin oscillations, also called “spin-plasmons”. This paper presents a discussion and review of the developments in this field from the fundamental theory of plasmons in bulk, thin-film, and surface-magnetized topological insulators to the techniques of plasmon excitation and future applications.

【 授权许可】

Unknown