Explore the words cloud of the TopSupra project. It provides you a very rough idea of what is the project "TopSupra" about.
The following table provides information about the project.
|Coordinator Country||Switzerland [CH]|
|Total cost||2˙497˙577 €|
|EC max contribution||2˙497˙577 € (100%)|
1. H2020-EU.1.1. (EXCELLENT SCIENCE - European Research Council (ERC))
|Duration (year-month-day)||from 2018-07-01 to 2023-06-30|
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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|
David Indolese, Simon Zihlmann, PÃ©ter Makk, Christian JÃ¼nger, Kishan Thodkar, Christian SchÃ¶nenberger
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|
Lujun Wang, Simon Zihlmann, Andreas Baumgartner, Jan Overbeck, Kenji Watanabe, Takashi Taniguchi, PÃ©ter Makk, Christian SchÃ¶nenberger
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|
PÃ©ter Makk, Clevin Handschin, Endre TÃ³vÃ¡ri, Kenji Watanabe, Takashi Taniguchi, Klaus Richter, Ming-Hao Liu, Christian SchÃ¶nenberger
Coexistence of classical snake states and Aharonov-Bohm oscillations along graphene p âˆ’ n junctions
published pages: , ISSN: 2469-9950, DOI: 10.1103/physrevb.98.035413
|Physical Review B 98/3||2020-01-30|
Simon Zihlmann, PÃ©ter Makk, SebastiÃ¡n Castilla, JÃ¶rg Gramich, Kishan Thodkar, Sabina Caneva, Ruizhi Wang, Stephan Hofmann, Christian SchÃ¶nenberger
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|
Minkyung Jung, Peter Rickhaus, Simon Zihlmann, Alexander Eichler, Peter Makk, Christian SchÃ¶nenberger
GHz nanomechanical resonator in an ultraclean suspended graphene pâ€“n junction
published pages: 4355-4361, ISSN: 2040-3364, DOI: 10.1039/c8nr09963d
D.â€‰I. Indolese, R. Delagrange, P. Makk, J.â€‰R. Wallbank, K. Wanatabe, T. Taniguchi, C. SchÃ¶nenberger
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|
Lujun Wang, Simon Zihlmann, Ming-Hao Liu, PÃ©ter Makk, Kenji Watanabe, Takashi Taniguchi, Andreas Baumgartner, Christian SchÃ¶nenberger
New Generation of MoirÃ© 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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