Vision & Mission

The newly established Würzburg-Dresden Center for Topological Quantum Matter Research functions as a bridge between the condensed matter research institutions at Würzburg and Dresden. Our aim is to develop a deep understanding of topological phenomena in general and to identify materials in which those phenomena can be observed in the laboratory.

Recent Publications

  • 25.11.2019

    Detection of second-order topological superconductors by Josephson junctions

    We study Josephson junctions based on a second-order topological superconductor (SOTS) which is realized in a quantum spin Hall insulator with a large inverted gap in proximity to an unconventional superconductor.

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  • 11.11.2019

    Giant enhancement of the skyrmion stability in a chemically strained helimagnet

    We employed small-angle neutron scattering to demonstrate that the magnetic skyrmion lattice can be realized in bulk chiral magnets as a thermodynamically stable state at temperatures much lower than the ordering temperature of the material.

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  • 07.11.2019

    Increasing skyrmion stability in ${\mathrm{Cu}}_{2}{\mathrm{OSeO}}_{3}$ by chemical substitution

    The cubic chiral helimagnets with the P213 space group represent a group of compounds in which the stable skyrmion-lattice state is experimentally observed.

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  • 31.10.2019

    Mott quantum criticality in the one-band Hubbard model: Dynamical mean-field theory, power-law spect

    Recent studies of electrical transport, both theoretical and experimental, near the bandwidth-tuned Mott metal-insulator transition have uncovered apparent quantum critical scaling of the electrical resistivity at elevated temperatures.

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  • 29.10.2019

    Ground state and low-temperature magnetism of the quasi-two-dimensional honeycomb compound ${\mathrm

    We report a combined 115In nuclear quadrupole resonance, 51V nuclear magnetic resonance, and muon spin-relaxation spectroscopic study of the low-temperature magnetic properties of InCu2/3V1/3O3.

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  • 28.10.2019

    Tomonaga–Luttinger liquid in the edge channels of a quantum spin Hall insulator

    Quantum spin Hall insulators are two-dimensional materials that host conducting helical electron states strictly confined to the one-dimensional boundaries.

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  • 15.10.2019

    {Conformality loss and quantum criticality in topological Higgs electrodynamics in 2+1 dimensions

    The electromagnetic response of topological insulators and superconductors is governed by a modified set of Maxwell equations that derive from a topological Chern-Simons (CS) term in the effective Lagrangian with coupling constant kappa.

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  • 08.10.2019

    Boundary-condition and geometry engineering in electronic hydrodynamics

    We analyze the role of boundary geometry in viscous electronic hydrodynamics.

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  • 07.10.2019

    {Large resistivity reduction in mixed-valent CsAuBr3 under pressure}

    We report on high-pressure p≤45 GPa resistivity measurements on the perovskite-related mixed-valent compound CsAuBr3.

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