Radiotekhnika
Publishing house Radiotekhnika

"Publishing house Radiotekhnika":
scientific and technical literature.
Books and journals of publishing houses: IPRZHR, RS-PRESS, SCIENCE-PRESS


Тел.: +7 (495) 625-9241

 

Photogalvanic effect in HgTe/CdTe topological insulator due to edge-bulk optical transitions

Keywords:

P.P. Aseev – – Ph.D. (Phys.-Math.), Junior Research Scientist, Kotelnikov IRE RAS (Moscow). Е-mail: pavel.p.aseev@gmail.com V.O. Kaladzhyan – Post-graduate Student, Kotelnikov IRE RAS (Moscow). Е-mail: vardashka@gmail.com S.N. Artemenko – Dr.Sc. (Phys.-Math.), Kotelnikov IRE RAS (Moscow). Е-mail: art@cplire.ru


We study theoretically edge-bulk optical transitions in 2D HgTe/CdTe topological insulator (THz range). We show that electron-hole asymmetry results in spin-dependent electric dipole transitions between edge and bulk states, and we predict an occurrence of a circular photocurrent.
References:

 

  1. Konig M., Buhmann H. et al. The quantum spin Hall effect: theory and experiment // J. Phys. Soc. Jpn 77. 031007. 2008.
  2. Diehl H., Shalygin V.A. et al. Nonlinear magnetogyrotropic photogalvanic effect // Physical Review B. 88. 045414. 2013.
  3. Bernevig B.A., Hughes T.L., Zhang S.-C. Quantum spin Hall effect and topological phase transition in HgTe quantum wells // Science 314. 1757. 2006.

 

© Издательство «РАДИОТЕХНИКА», 2004-2017            Тел.: (495) 625-9241                   Designed by [SWAP]Studio