Search Results for author: Stefan Blügel

Found 4 papers, 1 papers with code

Tailoring the anomalous Hall effect of SrRuO$_3$ thin films by strain: a first principles study

no code implementations11 Jan 2021 Kartik Samanta, Marjana Ležaić, Stefan Blügel, Yuriy Mokrousov

Motivated by the recently observed unconventional Hall effect in ultra-thin films of ferromagnetic SrRuO$_3$ (SRO) we investigate the effect of strain-induced oxygen octahedral distortion in the electronic structure and anomalous Hall response of the SRO ultra-thin films by virtue of density functional theory calculations.

Materials Science

Magnetic skyrmions, chiral kinks and holomorphic functions

no code implementations13 Jul 2020 Vladyslav M. Kuchkin, Bruno Barton-Singer, Filipp N. Rybakov, Stefan Blügel, Bernd J. Schroers, Nikolai S. Kiselev

In particular, we show that the topological charge of magnetic skyrmions can be expressed in terms of the constituent closed domain walls and chiral kinks.

Strongly Correlated Electrons High Energy Physics - Theory Mathematical Physics Mathematical Physics

Ubiquitous impact of localised impurity states on the exchange coupling mechanism in magnetic topological insulators

no code implementations15 Jan 2020 Thiago R. F. Peixoto, Hendrik Bentmann, Philipp Rüßmann, Abdul-Vakhab Tcakaev, Martin Winnerlein, Steffen Schreyeck, Sonja Schatz, Raphael Crespo Vidal, Fabian Stier, Volodymyr Zabolotnyy, Robert J. Green, Chul Hee Min, Celso I. Fornari, Henriette Maaß, Hari Babu Vasili, Pierluigi Gargiani, Manuel Valvidares, Alessandro Barla, Jens Buck, Moritz Hoesch, Florian Diekmann, Sebastian Rohlf, Matthias Kalläne, Kai Rossnagel, Charles Gould, Karl Brunner, Stefan Blügel, Vladimir Hinkov, Laurens W. Molenkamp, Friedrich Reinert

Since the discovery of the quantum anomalous Hall effect in the magnetically doped topological insulators (MTI) Cr:(Bi, Sb)$_2$Te$_3$ and V:(Bi, Sb)$_2$Te$_3$, the search for the exchange coupling mechanisms underlying the onset of ferromagnetism has been a central issue, and a variety of different scenarios have been put forward.

Strongly Correlated Electrons Materials Science

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