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Engineered Topological Superconductivity in van der Waals Heterostructures

Total Cost €


EC-Contrib. €






 TopSupra project word cloud

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

mf    particle    tunneling    purpose    nor    exotic    ferromagnets    van    insulator    manipulation    tuning    effect    hole    quasiparticles    computing    networks    insulators    anomalous    couple    engineered    nature    mobility    surface    abelian    chiral    pf    negative    parafermions    gap    carry    quantum    zero    stead    floquet    der    bandgap    topological    unprecedented    scaling    graphene    strain    expertise    manner    scs    prove    metal    symmetry    frequency    obtaining    bandstructure    splitters    transition    superconductors    noise    valley    spin    platform    fermions    versatility    edge    realized    waals    dichalcogenide    add    superconductivity    2d    local    spectroscopy    inverted    heterostructure    beneficial    ti    dressing    single    pair    interaction    energy    perspectives    pairing    layer    techniques    materials    pinned    few    versatile    combining    charge    layered    found    majorana    orbit    cooper    conducting    photon    mfs    hall    induce    nanowires    zeeman    enabled    emission    pfs   

Project "TopSupra" data sheet

The following table provides information about the project.


Organization address
address: PETERSPLATZ 1
city: BASEL
postcode: 4051

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 Switzerland [CH]
 Total cost 2˙497˙577 €
 EC max contribution 2˙497˙577 € (100%)
 Programme 1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
 Code Call ERC-2017-ADG
 Funding Scheme ERC-ADG
 Starting year 2018
 Duration (year-month-day) from 2018-07-01   to  2023-06-30


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    UNIVERSITAT BASEL CH (BASEL) coordinator 2˙497˙577.00


 Project objective

Topological matter is a new research focus with great perspectives. These are insulators with an inverted “negative” bandgap and a conducting surface state. While the surface state in a topological insulator (TI) is composed of chiral fermions carrying charge and spin, in topological superconductors it is pinned to zero energy due to particle-hole symmetry and composed of fermions that carry neither charge nor spin. In-stead, they are non-abelian fermions, Majorana and parafermions (MF/PF), that have been proposed for topological quantum computing. Evidence for MFs have been found in nanowires. However, the scaling-up challenge requires a platform in which networks of MFs can be realized. Here, we propose to use graphene-based van der Waals heterostructure for this purpose. The unprecedented versatility is enabled by combining high-mobility graphene with other layered materials, such as transition-metal dichalcogenide, few-layer ferromagnets and superconductors (SCs). This allows to design topological systems, e.g. the quantum spin, anomalous and valley Hall effect, by combining Zeeman energy, spin-orbit and pairing interaction. We will design 2D quantum matter using different approaches, including strain tuning and the dressing of the bandstructure by photon-fields (Floquet TI), and couple it to SCs to induce topological superconductivity. We will use our expertise from studies of Cooper-pair splitters to not only add pairing in a single edge-state, but also between different edge-states, beneficial in obtaining MFs and more exotic quasiparticles. We will apply advanced high-frequency techniques, e.g. emission and noise - in addition to local tunneling spectroscopy - to characterize the in-gap states and to prove their topological nature. We will deliver a versatile technology with which new states of matter can be obtained in a platform which can be engineered in a top-down manner into networks allowing for quantum-state manipulation of MFs and PFs.


year authors and title journal last update
List of publications.
2018 David Indolese, Simon Zihlmann, Péter Makk, Christian Jünger, Kishan Thodkar, Christian Schönenberger
Wideband and On-Chip Excitation for Dynamical Spin Injection into Graphene
published pages: , ISSN: 2331-7019, DOI: 10.1103/physrevapplied.10.044053
Physical Review Applied 10/4 2020-01-30
2019 Lujun Wang, Simon Zihlmann, Andreas Baumgartner, Jan Overbeck, Kenji Watanabe, Takashi Taniguchi, Péter Makk, Christian Schönenberger
In Situ Strain Tuning in hBN-Encapsulated Graphene Electronic Devices
published pages: 4097-4102, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.9b01491
Nano Letters 19/6 2020-01-30
2018 Péter Makk, Clevin Handschin, Endre Tóvári, Kenji Watanabe, Takashi Taniguchi, Klaus Richter, Ming-Hao Liu, Christian Schönenberger
Coexistence of classical snake states and Aharonov-Bohm oscillations along graphene p − n junctions
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.98.035413
Physical Review B 98/3 2020-01-30
2019 Simon Zihlmann, Péter Makk, Sebastián Castilla, Jörg Gramich, Kishan Thodkar, Sabina Caneva, Ruizhi Wang, Stephan Hofmann, Christian Schönenberger
Nonequilibrium properties of graphene probed by superconducting tunnel spectroscopy
published pages: , ISSN: 2469-9950, DOI: 10.1103/PhysRevB.99.075419
Physical Review B 99/7 2020-01-30
2019 Minkyung Jung, Peter Rickhaus, Simon Zihlmann, Alexander Eichler, Peter Makk, Christian Schönenberger
GHz nanomechanical resonator in an ultraclean suspended graphene p–n junction
published pages: 4355-4361, ISSN: 2040-3364, DOI: 10.1039/c8nr09963d
Nanoscale 11/10 2020-01-30
2018 D. I. Indolese, R. Delagrange, P. Makk, J. R. Wallbank, K. Wanatabe, T. Taniguchi, C. Schönenberger
Signatures of van Hove Singularities Probed by the Supercurrent in a Graphene-hBN Superlattice
published pages: , ISSN: 0031-9007, DOI: 10.1103/PhysRevLett.121.137701
Physical Review Letters 121/13 2020-01-30
2019 Lujun Wang, Simon Zihlmann, Ming-Hao Liu, Péter Makk, Kenji Watanabe, Takashi Taniguchi, Andreas Baumgartner, Christian Schönenberger
New Generation of Moiré Superlattices in Doubly Aligned hBN/Graphene/hBN Heterostructures
published pages: 2371-2376, ISSN: 1530-6984, DOI: 10.1021/acs.nanolett.8b05061
Nano Letters 19/4 2020-01-30

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