Skip to main content

Chiral Majorana Fermion Modes on the Surface of Superconducting Topological Insulators

Author(s): Chiu, Ching-Kai; Bian, Guang; Zheng, Hao; Yin, Jiaxin; Zhang, Songtian S.; et al

Download
To refer to this page use: http://arks.princeton.edu/ark:/88435/pr1px5x
Full metadata record
DC FieldValueLanguage
dc.contributor.authorChiu, Ching-Kai-
dc.contributor.authorBian, Guang-
dc.contributor.authorZheng, Hao-
dc.contributor.authorYin, Jiaxin-
dc.contributor.authorZhang, Songtian S.-
dc.contributor.authorXu, Su-Yang-
dc.contributor.authorHasan, M. Zahid-
dc.date.accessioned2019-08-29T17:05:29Z-
dc.date.available2019-08-29T17:05:29Z-
dc.date.issued2018-09-21en_US
dc.identifier.citationChiu, C.-K.; Bian, G.; Zheng, H.; Yin, J.-X.; Zhang, S. S.; Sanchez, D. S.; Belopolski, I.; Xu, S.-Y.; Hasan, M. Z. Chiral Majorana Fermion Modes on the Surface of Superconducting Topological Insulators. EPL (Europhysics Letters) 2018, 123 (4), 47005. https://doi.org/10.1209/0295-5075/123/47005.en_US
dc.identifier.issn0295-5075-
dc.identifier.urihttps://arxiv.org/abs/1612.09276v1-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr1px5x-
dc.description.abstractThe surface of superconducting topological insulators (STIs) has been recognized as an effective $p\pm ip$ superconductivity platform for realizing elusive Majorana fermions. Chiral Majorana modes (CMMs), which are different from Majorana bound states localized at points, can be achieved readily in experiments by depositing a ferromagnetic overlayer on top of the STI surface. Here we simulate this heterostructure by employing a realistic tight-binding model and show that the CMM appears on the edge of the ferromagnetic islands only after the superconducting gap is inverted by the exchange coupling between the ferromagnet and the STI. In addition, multiple CMMs can be generated by tuning the chemical potential of the topological insulator. These results can be applied to both proximity-effect induced superconductivity in topological insulators and intrinsic STI compounds such as PbTaSe$_2$, BiPd and their chemical analogues, providing a route to engineering CMMs in those materials.en_US
dc.format.extent1 - 16en_US
dc.language.isoen_USen_US
dc.relation.ispartofEPL (Europhysics Letters)en_US
dc.rightsAuthor's manuscripten_US
dc.titleChiral Majorana Fermion Modes on the Surface of Superconducting Topological Insulatorsen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1209/0295-5075/123/47005-
dc.identifier.eissn1286-4854-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

Files in This Item:
File Description SizeFormat 
1612.09276v1.pdf1.86 MBAdobe PDFView/Download


Items in OAR@Princeton are protected by copyright, with all rights reserved, unless otherwise indicated.