Search Results for author: Bernd Büchner

Found 5 papers, 0 papers with code

Unveiling the three-dimensional spin texture of skyrmion tubes

no code implementations29 Jan 2021 Daniel Wolf, Sebastian Schneider, Ulrich K. Rößler, András Kovács, Marcus Schmidt, Rafal E. Dunin-Borkowski, Bernd Büchner, Bernd Rellinghaus, Axel Lubk

Recent advances in skyrmionics prompt for a thorough understanding of the detailed three-dimensional (3D) spin texture of a skyrmion including skyrmion-skyrmion interactions and their coupling to surfaces and interfaces.

Electron Tomography Materials Science

Unusual heat transport of the Kitaev material Na$_2$Co$_2$TeO$_6$: putative quantum spin liquid and low-energy spin excitations

no code implementations28 Jan 2021 Xiaochen Hong, Matthias Gillig, Richard Hentrich, Weiliang Yao, Vilmos Kocsis, Arthur R. Witte, Tino Schreiner, Danny Baumann, Nicolás Pérez, Anja U. B. Wolter, Yuan Li, Bernd Büchner, Christian Hess

We studied the field dependent thermal conductivity ($\kappa$) of Na$_2$Co$_2$TeO$_6$, a compound considered as the manifestation of the Kitaev model based on the high-spin $d^7$ Co$^{2+}$ ions.

Strongly Correlated Electrons

Berezinskii-Kosterlitz-Thouless transition in the type-I Weyl semimetal PtBi$_2$

no code implementations5 Jan 2021 Arthur Veyrat, Valentin Labracherie, Rohith Acharya, Dima L. Bashlakov, Federico Caglieris, Jorge I. Facio, Grigory Shipunov, Lukas Graf, Johannes Schoop, Yurii Naidyuk, Romain Giraud, Jeroen van den Brink, Bernd Büchner, Christian Hess, Saicharan Aswartham, Joseph Dufouleur

Transport measurements show an unusually robust low dimensional superconductivity in thin exfoliated flakes up to 126 nm in thickness (with $T_c \sim 275-400$~mK), which constitutes the first report and study of unambiguous superconductivity in a type-I Weyl semimetal.

Superconductivity Mesoscale and Nanoscale Physics Materials Science

Axion Mie Theory of Electron Energy Loss Spectroscopy in Topological Insulators

no code implementations10 Feb 2020 Johannes Schultz, Flavio S. Nogueira, Bernd Büchner, Jeroen van den Brink, Axel Lubk

Electronic topological states of matter exhibit novel types of responses to electromagnetic fields.

Optics Mesoscale and Nanoscale Physics High Energy Physics - Theory

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