Majorana edge modes of topological exciton condensate with superconductors

Loading...
Thumbnail Image
If you need an accessible version of this item, please email your request to iusw@iu.edu so that they may create one and provide it to you.
Date
2012
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
I study the edge states of the topological exciton condensate formed by a Coulomb interaction between two parallel surfaces of a strong topological insulator. When the condensate is contacted by superconductors with a π phase shift across the two surfaces, a pair of counterpropagating Majorana modes close the gap at the boundary. I propose a nanostructured system of topological insulators and superconductors that hosts unpaired Majorana fermions when and only when the exciton condensate forms. Therefore, measuring the Majorana signal in this structure provides a way of detecting the topological exciton condensate that is uniquely related to its topological nature. The relevant experimental signatures as well as implications for related systems are discussed.
Description
Keywords
Citation
Seradjeh, B. (2012). Majorana edge modes of topological exciton condensate with superconductors. Physical Review B - Condensed Matter and Materials Physics, 86(12), 121101. http://dx.doi.org/10.1103/PhysRevB.86.121101
DOI
Link(s) to data and video for this item
Relation
Rights
© 2012 American Physical Society.
Type
Article