Probing the pinning strength of magnetic vortex cores with sub-nanometer resolution

Autor: Christian Holl, Marvin Knol, Marco Pratzer, Jonathan Chico, Imara Lima Fernandes, Samir Lounis, Markus Morgenstern

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-7 (2020)

Magnetic vortices such as skyrmions are promising for spintronic applications, however, little is known about the pinning effects strongly influencing their dynamics. Here, the authors map the interaction potential between defects and vortex cores do

Externí odkaz: https://doaj.org/article/36a130bdf5f6494681064c17218b8c51

Evidence for Local Spots of Viscous Electron Flow in Graphene at Moderate Mobility

Autor: Daniel Neumaier, Sven Just, Burkay Uzlu, Zhenxing Wang, Sayanti Samaddar, Tjorven Johnsen, Markus Morgenstern, Kevin Janßen, Sha Li, Jeff Strasdas, Marcus Liebmann

Publikováno v: Nano Letters. 21:9365-9373

Dominating electron-electron scattering enables viscous electron flow exhibiting hydrodynamic current density patterns such as Poiseuille profiles or vortices. The viscous regime has recently been observed in graphene by non-local transport experimen

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c58645bd8e652490248a5b359eae349
https://doi.org/10.1021/acs.nanolett.1c01145

Pilot-scale fabrication and analysis of graphene-nanocomposite fibers

Autor: Markus Morgenstern, Konstantin G. Wirth, Gunnar Henrik Seide, Benjamin Alexander Weise, Lukas Völkel

Publikováno v: Carbon : an international journal sponsored by the American Carbon Society 144, 351-361 (2019). doi:10.1016/j.carbon.2018.12.042
Carbon, 144, 351-361. Elsevier Limited
Carbon

Graphene/polymer composites can be spun into fibers with remarkable mechanical, thermal and electrical properties, but few studies have considered requirements for the pilot-scale production of such fibers using commercially available graphene nanopl

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0a2004607d6e9308d99d6a0fc5c12f4
https://doi.org/10.1016/j.carbon.2018.12.042

Mn-rich MnSb2Te4: A topological insulator with magnetic gap closing at high Curie temperatures of 45-50 K

Autor: Daniel Primetzhofer, Mikhail M. Otrokov, Eugen Weschke, F. Freyse, Andreas Ney, S. Wimmer, Gustav Bihlmayer, Gerrit E. W. Bauer, Oliver Rader, B. Lake, Philipp Küppers, Marcus Liebmann, Markus Morgenstern, Martin Hoffman, Jaime Sánchez-Barriga, Gunther Springholz, Arthur Ernst, Ondrej Caha, Enrico Schierle, Jan Michalička, Evgueni V. Chulkov

Publikováno v: Advanced materials. 2021. Vol. 33, № 42. P. 2102935 (1-11)
Advanced Materials
Advanced materials 10, 2102935 (2021). doi:10.1002/adma.202102935
Advanced materials 33(42), 2102935 (2021). doi:10.1002/adma.202102935
Digital.CSIC. Repositorio Institucional del CSIC
instname

Ferromagnetic topological insulators exhibit the quantum anomalous Hall effect, which is potentially useful for high-precision metrology, edge channel spintronics, and topological qubits. The stable 2+ state of Mn enables intrinsic magnetic topologic

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::14eb74075d79c522966bda0cd2e6b2fd
https://vital.lib.tsu.ru/vital/access/manager/Repository/koha:000892893

Exfoliated hexagonal BN as gate dielectric for InSb nanowire quantum dots with improved gate hysteresis and charge noise

Autor: Sasa Gazibegovic, Erik P. A. M. Bakkers, Benjamin Pestka, Kilian Flöhr, Jürgen Schubert, Markus Morgenstern, Marcus Liebmann, Diana Car, Thomas Schäpers, Sebastian Heedt, Felix Jekat

Publikováno v: Applied Physics Letters

We characterize InSb quantum dots induced by bottom finger gates within a nanowire that is grown via the vapor-liquid-solid process. The gates are separated from the nanowire by an exfoliated 35\,nm thin hexagonal BN flake. We probe the Coulomb diamo

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::254c4a76952f2d0e9fe2433fc0e72059