About us

The Sonderforschungsbereich “Topological and Correlated Electronics at Surfaces and Interfaces” (ToCoTronics) aims at combining two of the most active and exciting fields of modern condensed matter physics: topological phases of matter and strong electronic correlations. [...]

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Spokespersons

Prof. Dr. Ralph Claessen
Email: claessen@physik.uni-wuerzburg.de

Prof. Dr. Björn Trauzettel
Email: trauzettel@physik.uni-wuerzburg.de

SFB 1170

Topological and Correlated Electronics at Surfaces and Interfaces

Upcoming Colloquia & Seminars

Interfacial superconductivity in Fe-chalcogenide/topological insulator heterostructures

09/21/2017

Sujit Manna, Massachusetts Institute of Technology, Cambridge, USA

SFB Colloquium in SE 2 at 16:15

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Hallwachs-Röntgen Postdoc Program

The newly established Dresden-Würzburg Center for Topological Quantum Matter Research

invites applications for Research Associates within the Hallwachs-Röntgen Postdoc Program

The positions are available immediately fixed-term for a duration of three years. The period of employment is governed by the Fixed Term Research Contracts Act (Wissenschaftszeitvertragsgesetz - WissZeitVG). The positions offer the chance to obtain further academic qualification.

[...]

For more information download
the advertisement here

The application deadline is August 31, 2017.

Recent Publications

Bismuthene on a SiC substrate: A candidate for a high-temperature quantum spin Hall material

Abstract

Quantum spin Hall (QSH) materials promise revolutionary device applications based on dissipationless propagation of spin currents. They are two-dimensional (2D) representatives of the family of topological insulators, which exhibit conduction channels at their edges inherently protected against scattering. [...]

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Interaction-induced helical gaps in nanowires

Abstract

Spin–momentum locking in a semiconductor device with strong spin–orbit coupling (SOC) is thought to be an important prerequisite for the formation of Majorana bound states. Such a helical state is predicted in one-dimensional (1D) nanowires subject to strong Rashba SOC and spin-mixing—its hallmark being a characteristic re-entrant behaviour in the conductance. Here, we report direct experimental observations [...]

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Spin-polarized midgap states in TCIs

Abstract

Topological crystalline insulators are materials in which the crystalline symmetry leads to topologically protected surface states with a chiral spin texture, rendering them potential candidates for spintronics applications. Using scanning tunneling spectroscopy, we uncover the existence of one-dimensional (1D) midgap states at odd-atomic surface step edges of the three-dimensional topological crystalline insulator (Pb,Sn)Se. [...]

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4pi-periodic Josephson supercurrent in TIs

Abstract

The Josephson effect describes the generic appearance of a supercurrent in a weak link between two superconductors. Its exact physical nature deeply influences the properties of the supercurrent. In recent years, considerable efforts have focused on the coupling of superconductors to the surface states of a three-dimensional topological insulator. In such a material, an unconventional induced p-wave superconductivity [...]

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