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Josephson effect in Al/Bi2Se3/Al coplanar hybrid devices

L. Galletti ; Sophie Charpentier (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik) ; P. Lucignano ; D. Massarotti ; Riccardo Arpaia (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik) ; F. Tafuri ; Thilo Bauch (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik) ; Y. Suzuki ; A. Tagliacozzo ; K. Kadowaki ; Floriana Lombardi (Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik)
Physica. C, Superconductivity (0921-4534). Vol. 503 (2014), p. 162-165.
[Artikel, refereegranskad vetenskaplig]

The edge states of Topological Insulators (TI) are protected against backscattering, thanks to the topological properties arising from their band structure. Coupling a TI to a superconductor (S) can induce unconventional effects, including the creation of Majorana bound states (MBS). The fabrication of coplanar hybrid devices is a fundamental step to pave the way to the understanding of proximity effects in topologically non-trivial systems, and to a large variety of experiments aimed at the possible detection of MBS. We discuss the feasibility and some relevant properties of Al-Bi2Se3-Al coplanar proximity devices. Special attention is devoted to the design of the junction, aimed at enhancing the coupling between the electrodes and the TI.

Nyckelord: Josephson junctions, Topological insulators, Proximity effect, Coplanar hybrid devices, single dirac cone, topological-insulator, surface-state, superconducting, transport, junctions, bi2se3, bi2te3, transition

Denna post skapades 2014-09-09. Senast ändrad 2016-09-14.
CPL Pubid: 202516


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Institutioner (Chalmers)

Institutionen för mikroteknologi och nanovetenskap, Kvantkomponentfysik



Chalmers infrastruktur