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pro vyhledávání: '"Junck, Alexandra"'
We study how electron-electron (e-e) interactions affect the current carried by excited electrons and holes in Dirac systems such as graphene or topological insulators. We find that the current shows distinctly different behavior for e-e collisions i
Externí odkaz:
http://arxiv.org/abs/1312.6084
Publikováno v:
Phys. Rev. B 87, 235114 (2013)
Features of a topological phase, and edge states in particular, may be obscured by overlapping in energy with a trivial conduction band. The topological nature of such a conductor, however, is revealed in its transport properties, especially in the p
Externí odkaz:
http://arxiv.org/abs/1302.3014
Publikováno v:
Phys. Rev. B 88, 075144 (2013)
We study the photocurrent response of topological insulator surface states to circularly polarized light for arbitrary oblique incidence. We describe the surface states within a Dirac model, including several perturbations such as hexagonal warping,
Externí odkaz:
http://arxiv.org/abs/1301.4392
Autor:
Junck, Alexandra
Topological insulators constitute a new quantum phase of matter that is characterized by a band gap in the bulk, just like an ordinary insulator, but hosts gapless states on its surface. Illuminating a topological insulator by light is expected to le
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=od______4732::80bd846df8e2156399c1d30be2b16266
https://refubium.fu-berlin.de/handle/fub188/1540
https://refubium.fu-berlin.de/handle/fub188/1540
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