Display options
Cite
Valdés Aguilar R, Stier AV, Liu W, et al. Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3. Phys Rev Lett. 2012;108(8):087403doi: 10.1103/PhysRevLett.108.087403.
Valdés Aguilar, R., Stier, A. V., Liu, W., Bilbro, L. S., George, D. K., Bansal, N., Wu, L., Cerne, J., Markelz, A. G., Oh, S., & Armitage, N. P. (2012). Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3. Physical review letters, 108(8), 087403. https://doi.org/10.1103/PhysRevLett.108.087403
Valdés Aguilar, R, et al. "Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3." Physical review letters vol. 108,8 (2012): 087403. doi: https://doi.org/10.1103/PhysRevLett.108.087403
Valdés Aguilar R, Stier AV, Liu W, Bilbro LS, George DK, Bansal N, Wu L, Cerne J, Markelz AG, Oh S, Armitage NP. Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3. Phys Rev Lett. 2012 Feb 24;108(8):087403. doi: 10.1103/PhysRevLett.108.087403. Epub 2012 Feb 22. PMID: 22463570.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2012 Feb 24;108(8):087403. doi: 10.1103/PhysRevLett.108.087403. Epub 2012 Feb 22.

Terahertz response and colossal Kerr rotation from the surface states of the topological insulator Bi2Se3.

Physical review letters

R Valdés Aguilar, A V Stier, W Liu, L S Bilbro, D K George, N Bansal, L Wu, J Cerne, A G Markelz, S Oh, N P Armitage

Affiliations

  1. The Institute for Quantum Matter, Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, Maryland 21218, USA. [email protected]

PMID: 22463570 DOI: 10.1103/PhysRevLett.108.087403

Abstract

We report the THz response of thin films of the topological insulator Bi2Se3. At low frequencies, transport is essentially thickness independent showing the dominant contribution of the surface electrons. Despite their extended exposure to ambient conditions, these surfaces exhibit robust properties including narrow, almost thickness-independent Drude peaks, and an unprecedentedly large polarization rotation of linearly polarized light reflected in an applied magnetic field. This Kerr rotation can be as large as 65° and can be explained by a cyclotron resonance effect of the surface states.

Publication Types