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dc.contributor.author
Shabani, J.
dc.contributor.author
Kjaergaard, M.
dc.contributor.author
Suominen, H.J.
dc.contributor.author
Kim, Younghyun
dc.contributor.author
Nichele, F.
dc.contributor.author
Pakrouski, K.
dc.contributor.author
Stankevic, T.
dc.contributor.author
Lutchyn, R.M.
dc.contributor.author
Krogstrup, P.
dc.contributor.author
Feidenhans'l, R.
dc.contributor.author
Kraemer, S.
dc.contributor.author
Nayak, C.
dc.contributor.author
Troyer, M.
dc.contributor.author
Marcus, C.M.
dc.contributor.author
Palmstrøm, C.J.
dc.date.accessioned
2017-06-11T22:21:01Z
dc.date.available
2017-06-11T22:21:01Z
dc.date.issued
2015
dc.identifier.uri
http://hdl.handle.net/20.500.11850/109201
dc.description.abstract
Progress in the emergent field of topological superconductivity relies on synthesis of new material combinations, combining superconductivity, low density, and spin-orbit coupling (SOC). For example, theory [1-4] indicates that the interface between a one-dimensional (1D) semiconductor (Sm) with strong SOC and a superconductor (S) hosts Majorana modes with nontrivial topological properties [5-8]. Recently, epitaxial growth of Al on InAs nanowires was shown to yield a high quality S-Sm system with uniformly transparent interfaces [9] and a hard induced gap, indicted by strongly suppressed sub gap tunneling conductance [10]. Here we report the realization of a two-dimensional (2D) InAs/InGaAs heterostructure with epitaxial Al, yielding a planar S-Sm system with structural and transport characteristics as good as the epitaxial wires. The realization of 2D epitaxial S-Sm systems represent a significant advance over wires, allowing extended networks via top-down processing. Among numerous potential applications, this new material system can serve as a platform for complex networks of topological superconductors with gate-controlled Majorana zero modes [1-4]. We demonstrate gateable Josephson junctions and a highly transparent 2D S-Sm interface based on the product of excess current and normal state resistance.
dc.language.iso
en
dc.publisher
Cornell University
dc.title
Two-dimensional epitaxial superconductor-semiconductor heterostructures: A platform for topological superconducting networks
dc.type
Working Paper
ethz.journal.title
arXiv
ethz.pages.start
arXiv:1511.01127
ethz.size
13 p.
ethz.notes
Submitted on 3 November 2015, Last revised 7 November 2015. See also http://e-citations.ethbib.ethz.ch/view/pub:176797.
ethz.publication.place
Ithaca, NY
ethz.publication.status
published
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02511 - Institut für Theoretische Physik / Institute for Theoretical Physics::03622 - Troyer, Matthias / Troyer, Matthias
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02511 - Institut für Theoretische Physik / Institute for Theoretical Physics::03622 - Troyer, Matthias / Troyer, Matthias
ethz.identifier.url
http://arxiv.org/abs/1511.01127v2
ethz.date.deposited
2017-06-11T22:21:08Z
ethz.source
ECIT
ethz.identifier.importid
imp593653ddc52aa65540
ethz.ecitpid
pub:170255
ethz.eth
yes
ethz.availability
Metadata only
ethz.rosetta.installDate
2017-07-20T18:26:39Z
ethz.rosetta.lastUpdated
2018-08-02T17:17:27Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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