News

05.12.2017 – Visit of Bernd Zimmermann

This week, we are very pleased to host Dr. Bernd Zimmernann from the group of Prof. Yuriy Mokrousov from Forschungszentrum Jülich. He will teach us about spin-orbit effects from ab-initio theory.

07.11.2017 – Visit of Dr. Oliver Breunig

We welcome today Dr. Oliver Breunig from the Institute of Physics II at the University of Cologne, hosted by TWIST. He will give a talk on “Gigantic Negative Magnetoresistance in a Disordered Topological Insulator”.

Details: “Recently the phenomenon of negative magnetoresistance (MR) is attracting renewed interest due to its occurrence in Weyl semimetals because of the chiral anomaly. In other systems a large MR typically relates to magnetism. In this talk a novel mechanism leading to a large negative MR will be presented that is based not on magnetism, but on disorder. In the newly synthesized bulkinsulating topological insulator material T1BixSb1-xTe2 we find a suppression of the resistivity by up to 98 % in 14 T at low temperature. From transport data and numerical simulations, this gigantic negative MR is understood by a percolation of charge puddles formed in the disordered bulk.”

Click here to see the announcement.

25.07.2017 – SPICE workshop Topology Matters starts

We welcome all the participants to theSPICE Topology Matters workshop. It brings  togetherthe top scientists in the fields of spintronics, superconductivity, topological insulators, and multiferroics in order to explore their connections via topology.

This will also be the first workshop of SPICE where the majority of the typical gender balance has been inverted!!

It promises to be an exciting workshop!