High-Transparency Al/Bi2Te3 Double-Barrier Heterostructures

Luca Galletti; Sophie Charpentier; Yuxin Song; Dmitry Golubev; Shu M. Wang; Thilo Bauch; Floriana Lombardi

doi:10.1109/TASC.2016.2632112

High-Transparency Al/Bi₂Te₃ Double-Barrier Heterostructures

Luca Galletti
, Sophie Charpentier
, Yuxin Song
, Dmitry Golubev
, Shu M. Wang
, Thilo Bauch
, Floriana Lombardi

Chalmers University of Technology

Research output: Contribution to journal › Article › Scientific › peer-review

8 Citations (Scopus)

Abstract

We have fabricated highly transparent Al/Bi₂Te₃/Al superconductor/normal metal/superconductor double-barrier heterostructures. Transport measurements reveal the presence of multiple Andreev reflections related to two distinct energy gaps that we identify as the induced superconducting gap in the two electrodes. The realization of high-transparency Josephson junctions with topological insulators is an important step towards the study of topological superconductivity and Majorana fermions.

Original language	English
Article number	7756380
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	27
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2016.2632112
Publication status	Published - 1 Jun 2017
MoE publication type	A1 Journal article-refereed

Keywords

Hybrid junctions
Josephson junctions
proximity effect
Superconducting devices

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10.1109/TASC.2016.2632112

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abstract = "We have fabricated highly transparent Al/Bi2Te3/Al superconductor/normal metal/superconductor double-barrier heterostructures. Transport measurements reveal the presence of multiple Andreev reflections related to two distinct energy gaps that we identify as the induced superconducting gap in the two electrodes. The realization of high-transparency Josephson junctions with topological insulators is an important step towards the study of topological superconductivity and Majorana fermions.",

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author = "Luca Galletti and Sophie Charpentier and Yuxin Song and Dmitry Golubev and Wang, \{Shu M.\} and Thilo Bauch and Floriana Lombardi",

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AU - Galletti, Luca

AU - Charpentier, Sophie

AU - Song, Yuxin

AU - Golubev, Dmitry

AU - Wang, Shu M.

AU - Bauch, Thilo

AU - Lombardi, Floriana

PY - 2017/6/1

Y1 - 2017/6/1

N2 - We have fabricated highly transparent Al/Bi2Te3/Al superconductor/normal metal/superconductor double-barrier heterostructures. Transport measurements reveal the presence of multiple Andreev reflections related to two distinct energy gaps that we identify as the induced superconducting gap in the two electrodes. The realization of high-transparency Josephson junctions with topological insulators is an important step towards the study of topological superconductivity and Majorana fermions.

AB - We have fabricated highly transparent Al/Bi2Te3/Al superconductor/normal metal/superconductor double-barrier heterostructures. Transport measurements reveal the presence of multiple Andreev reflections related to two distinct energy gaps that we identify as the induced superconducting gap in the two electrodes. The realization of high-transparency Josephson junctions with topological insulators is an important step towards the study of topological superconductivity and Majorana fermions.

KW - Hybrid junctions

KW - Josephson junctions

KW - proximity effect

KW - Superconducting devices

UR - https://www.scopus.com/pages/publications/85013025428

U2 - 10.1109/TASC.2016.2632112

DO - 10.1109/TASC.2016.2632112

M3 - Article

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JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 4

M1 - 7756380

ER -

High-Transparency Al/Bi₂Te₃ Double-Barrier Heterostructures

Abstract

Keywords

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