Surface plasmon of three-dimensional Dirac semimetals (CROSBI ID 245432)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Bonačić Lošić, Željana
engleski
Surface plasmon of three-dimensional Dirac semimetals
The surface plasmon excitation spectrum is calculated for the semi-infinite three- dimensional Dirac semimetal. We used the random phase approximation (RPA) for the calculation of the surface dielectric function, from which we derived the dynamical structure factor. The surface excitation spectrum shows a well- defined strong surface plasmon peak due to the plasmon mode in the bulk, with a noticeable influence of electron-hole excitations at large wave vectors parallel to the surface. The obtained spectrum will be useful for exploring experimentally the surface spectral properties of three-dimensional topological Dirac semimetals.
Dirac electron ; plasmon ; surface plasmon
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Podaci o izdanju
30 (4)
2018.
045002
6
objavljeno
0953-8984
1361-648X
10.1088/1361-648X/aaa070