Pregledni rad
Plasmonics in Topological Insulators
Yi-Ping Lai
; Electrical Engineering Department, University of California Los Angeles, Los Angeles, CA, USA
I-Tan Lin
; Electrical Engineering Department, University of California Los Angeles, Los Angeles, CA, USA
Kuang-Hsiung Wu
; Department of Electrophysics, National Chiao-Tung University, Hsinchu, Taiwan
Jia-Ming Liu
; Electrical Engineering Department, University of California Los Angeles, Los Angeles, CA, USA
Sažetak
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.
Ključne riječi
topological insulator; plasmons; spin-orbit; interaction
Hrčak ID:
142610
URI
Datum izdavanja:
1.1.2014.
Posjeta: 2.123 *