Majorana STM as a perfect detector of odd-frequency superconductivity

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorKashuba, Oleksiy
dc.contributor.authorSothmann, Bjoern
dc.contributor.authorBurset Atienza, Pablo
dc.contributor.authorTrauzettel, Bjoern
dc.contributor.departmentUniversity of Würzburg
dc.contributor.departmentUniversity of Duisburg-Essen
dc.contributor.departmentDepartment of Applied Physics
dc.date.accessioned2017-08-03T12:10:31Z
dc.date.available2017-08-03T12:10:31Z
dc.date.issued2017-05-24
dc.description.abstractWe propose a novel scanning tunneling microscope (STM) device in which the tunneling tip is formed by a Majorana bound state (MBS). This peculiar bound state emerges at the boundary of a one-dimensional topological superconductor. Since the MBS has to be effectively spinless and local, we argue that it is the smallest unit that shows itself the properties of odd-frequency superconducting pairing. Odd-frequency superconductivity is characterized by an anomalous Green's function, which is an odd function of the time arguments of the two electrons building the Cooper pair. Interestingly, our Majorana STM can be used as the perfect detector of odd-frequency superconductivity. The reason is that a supercurrent between the Majorana STM and any other superconductor can only flow if the latter system exhibits itself odd-frequency pairing. To illustrate our general idea, we consider the tunneling problem of the Majorana STM coupled to a quantum dot placed on a surface of a conventional superconductor.en
dc.description.versionPeer revieweden
dc.format.extent9
dc.format.extent1-9
dc.format.mimetypeapplication/pdf
dc.identifier.citationKashuba , O , Sothmann , B , Burset Atienza , P & Trauzettel , B 2017 , ' Majorana STM as a perfect detector of odd-frequency superconductivity ' , Physical Review B , vol. 95 , no. 17 , 174516 , pp. 1-9 . https://doi.org/10.1103/PhysRevB.95.174516en
dc.identifier.doi10.1103/PhysRevB.95.174516
dc.identifier.issn2469-9950
dc.identifier.issn1550-235X
dc.identifier.otherPURE UUID: c1ea3166-4577-4915-a654-083c3149373a
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/c1ea3166-4577-4915-a654-083c3149373a
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/14370047/PhysRevB.95.174516.pdf
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/27420
dc.identifier.urnURN:NBN:fi:aalto-201708036388
dc.language.isoenen
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/743884/EU//DiracEntangler
dc.relation.ispartofseriesPHYSICAL REVIEW Ben
dc.relation.ispartofseriesVolume 95, issue 17en
dc.rightsopenAccessen
dc.subject.keywordFERROMAGNET STRUCTURES
dc.subject.keywordTIME-REVERSAL
dc.subject.keywordFERMIONS
dc.subject.keywordPHYSICS
dc.subject.keywordPARITY
dc.subject.keywordMODEL
dc.titleMajorana STM as a perfect detector of odd-frequency superconductivityen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionpublishedVersion
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