Abstract: Topological insulators (TIs) behave like ordinary insulators in the bulk but like metals at the surface. Interestingly, the surface states can be described as massless Dirac fermions. In nature, TIs have been first realized in HgTe/CdTe quantum wells – in two spatial dimensions (2D) – and subsequently also in 3D in BiSb, BiSe, as well as BiTe crystals. We will start the presentation with an extended introduction into the physics of TIs with a particular emphasis on its relation to topology. Afterwards, we will discuss peculiar examples of TI-specific properties such as the perfect spin-to-charge conversion of the edge states of a 2D TI or the emergence of Majorana fermions in topological superconductors.
Information on participating / attending:
Interessierte sind herzlich eingeladen!
Kaffee ab 16:30 Uhr vor dem GSR.
Organisation: Prof. H. Fehske und Prof. L. Schweikhard
Kontakt: Institut für Physik, Felix-Hausdorff-Straße 6, 17489 Greifswald,
Telefon 03834 86-4700, http://www.physik.uni-greifswald.de
Date:
05/22/2014 17:00 - 05/22/2014 18:00
Event venue:
Hörsaal
Institut für Physik
Felix-Hausdorff-Straße 6
17489 Greifswald
Mecklenburg-Vorpommern
Germany
Target group:
Scientists and scholars, Students
Relevance:
regional
Subject areas:
Physics / astronomy
Types of events:
Presentation / colloquium / lecture
Entry:
04/25/2014
Sender/author:
Sabine Köditz
Department:
Presse- und Informationsstelle
Event is free:
no
Language of the text:
German
URL of this event: http://idw-online.de/en/event47066
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