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MajoranaTopIn SIGNED

Majorana Fermions in Topological Insulator Platforms

Total Cost €

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EC-Contrib. €

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Partnership

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 MajoranaTopIn project word cloud

Explore the words cloud of the MajoranaTopIn project. It provides you a very rough idea of what is the project "MajoranaTopIn" about.

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Project "MajoranaTopIn" data sheet

The following table provides information about the project.

Coordinator
UNIVERSITAET ZU KOELN 

Organization address
address: ALBERTUS MAGNUS PLATZ
city: KOELN
postcode: 50931
website: www.uni-koeln.de

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Germany [DE]
 Total cost 2˙406˙250 €
 EC max contribution 2˙406˙250 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2016-ADG
 Funding Scheme ERC-ADG
 Starting year 2017
 Duration (year-month-day) from 2017-05-01   to  2022-04-30

 Partnership

Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAET ZU KOELN DE (KOELN) coordinator 2˙406˙250.00

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 Project objective

Majorana fermions were recently discovered in topological superconductors as exotic quasiparticles having the curious property of being their own antiparticles. They are not only interesting as novel relativistic quasiparticles, but are also useful for realizing fault-tolerant quantum computers. However, currently available platforms to materialize Majorana fermions are limited, and the existing platforms have respective drawbacks for actually building qubits for a scalable quantum computer. Also, various unusual properties are predicted for Majorana fermions, but few have been experimentally addressed. To make a leap in the Majorana-fermion research which is technically highly demanding, one needs to grow state-of-the-art materials and tightly combine them with mesoscopic device research. By performing such an integrated research efforts in the same laboratory, this project aims to explore new platforms for Majorana qubits and to establish new methodologies to address peculiar physics of Majorana fermions. As new platforms, we pursue (i) three-dimensional topological-insulator nanoribbons and (ii) ferromagnetic topological-insulator thin films, both of which will be proximity-coupled to an s-wave superconductor. Each of them allows for conceiving Majorana qubits based on different principles, which will be tested in this project. Also, by developing new methodologies, we will elucidate (i) non-Abelian statistics probed by interferometry and (ii) quantized/universal heat transport phenomena probed by thermal conductance. These works will be complemented by materials growth efforts involving molecular beam epitaxy and detailed characterizations of the local electronic states using scanning tunnelling spectroscopy. If successful, this project will not only contribute to the realization of scalable quantum computers, but also elucidate the non-Abelian statistics, which is a fundamentally new property of particles and is ground breaking in physics.

 Publications

year authors and title journal last update
List of publications.
2018 Ran Tao, Ya-Jun Yan, Xi Liu, Zhi-Wei Wang, Yoichi Ando, Qiang-Hua Wang, Tong Zhang, Dong-Lai Feng
Direct Visualization of the Nematic Superconductivity in Cu x Bi 2
published pages: , ISSN: 2160-3308, DOI: 10.1103/physrevx.8.041024
Physical Review X 8/4 2019-11-12
2018 Stefan Wilfert, Paolo Sessi, Zhiwei Wang, Henrik Schmidt, M. Carmen Martínez-Velarte, Seng Huat Lee, Yew San Hor, Alexander F. Otte, Yoichi Ando, Weida Wu, Matthias Bode
Scanning tunneling spectroscopy investigations of superconducting-doped topological insulators: Experimental pitfalls and results
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.98.085133
Physical Review B 98/8 2019-11-12
2019 Andrea Bliesener, Junya Feng, A. A. Taskin, Yoichi Ando
Superconductivity in Sn 1 − x In x Te thin films grown by
published pages: , ISSN: 2475-9953, DOI: 10.1103/physrevmaterials.3.101201
Physical Review Materials 3/10 2019-11-12
2018 Subhamoy Ghatak, Oliver Breunig, Fan Yang, Zhiwei Wang, Alexey A. Taskin, Yoichi Ando
Anomalous Fraunhofer Patterns in Gated Josephson Junctions Based on the Bulk-Insulating Topological Insulator BiSbTeSe 2
published pages: 5124-5131, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.8b02029
Nano Letters 18/8 2019-07-18

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