315 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Technische Universität DresdenDE58 papers
- Leibniz Institute for Solid State and Materials ResearchDE45 papers
- Max Planck Institute for Chemical Physics of SolidsDE11 papers
- University of WuppertalDE10 papers
- Technical University of MunichDE9 papers
- Bavarian Academy of Sciences and HumanitiesDE8 papers
- Centre National de la Recherche ScientifiqueFR8 papers
- Walther Meissner InstituteDE8 papers
- Nanosystems Initiative MunichDE7 papers
- Complexity and Topology in Quantum MatterDE6 papers
- Commissariat à l'Énergie Atomique et aux Énergies AlternativesFR5 papers
- Spintronique et Technologie des ComposantsFR5 papers
58 papers
Fermi surface evolution in Weyl semimetal t-PtBi probed by transverse transport properties
F. Caglieris, M. Ceccardi, D. Efremov +8
The combination of non-trivial topology and superconductivity opens to novel quantum devices. The discovery of intrinsic materials where such properties appear together represents…
Dissipationless transport signature of topological nodal lines
Arthur Veyrat, Klaus Koepernik, Louis Veyrat +12
Topological materials, such as topological insulators or semimetals, usually not only reveal the nontrivial properties of their electronic wavefunctions through the appearance of s…
Fermi arcs dominating the electronic surface properties of trigonal PtBi
Sven Hoffmann, Sebastian Schimmel, Riccardo Vocaturo +10
Materials combining topologically non-trivial behavior and superconductivity offer a potential route for quantum computation. However, the set of available materials intrinsically…
Phononic-magnetic dichotomy of the thermal Hall effect in the Kitaev-Heisenberg candidate material NaCoTeO
Matthias Gillig, Xiaochen Hong, Christoph Wellm +5
Majorana fermions as emergent excitations of the Kitaev quantum spin liquid ground state constitute a promising concept in fault tolerant quantum computation. Experimentally, the r…
Absence of hexagonal to square structural transition in LiFeAs vortex matter
Sven Hoffmann, Ronny Schlegel, Christian Salazar +9
We investigated magnetic vortices in two stoichiometric LiFeAs samples by means of scanning tunneling microscopy and spectroscopy. The vortices were revealed by measuring the local…
Thermal transport of the frustrated spin-chain mineral linarite: Magnetic heat transport and strong spin-phonon scattering
Matthias Gillig, Xiaochen Hong, Piyush Sakrikar +6
The mineral linarite (PbCuSO(OH)) forms a monoclinic structure where a sequence of Cu(OH) units forms a spin- chain. Competing ferromagnetic nearest-neighb…
Unusual heat transport of the Kitaev material NaCoTeO: putative quantum spin liquid and low-energy spin excitations
Xiaochen Hong, Matthias Gillig, Richard Hentrich +10
We studied the field dependent thermal conductivity () of NaCoTeO, a compound considered as the manifestation of the Kitaev model based on the high-spin Co$^{2…
Revisiting the phase diagram of LaFeCoAsO on single crystals by thermodynamic methods
Francesco Scaravaggi, Sven Sauerland, Liran Wang +13
In this work we revisit the phase diagram of Co-doped LaFeAsO using single crystals and thermodynamic methods. From magnetic susceptibility studies we track the doping evolution of…
Berezinskii-Kosterlitz-Thouless transition in the type-I Weyl semimetal PtBi
Arthur Veyrat, Valentin Labracherie, Dima L. Bashlakov +12
Symmetry breaking in topological matter has become in recent years a key concept in condensed matter physics to unveil novel electronic states. In this work, we predict that broken…
High-field thermal transport properties of the Kitaev quantum magnet alpha-RuCl3: evidence for low-energy excitations beyond the critical field
Richard Hentrich, Xiaochen Hong, Matthias Gillig +11
We investigate the phononic in-plane longitudinal low-temperature thermal conductivity kappa_ab of the Kitaev quantum magnet alpha-RuCl3 for large in-plane magnetic fields up to 33…
Role of magnetic exchange interactions in chiral-type Hall effects of epitaxial MnPtSn films
Peter Swekis, Jacob Gayles, Dominik Kriegner +5
Tetragonal Mn-based Heusler compounds feature rich exchange interactions and exotic topological magnetic textures, such as antiskyrmions, complimented by the chiral-type Hall effec…
Disorder-induced coupling of Weyl nodes in WTe
Steffen Sykora, Johannes Schoop, Lukas Graf +7
The finite coupling between Weyl nodes due to residual disorder is investigated by magnetotransport studies in WTe. The anisotropic scattering of quasiparticles is evidenced fr…
Meta-magnetism of weakly-coupled antiferromagnetic topological insulators
Aoyu Tan, Valentin Labracherie, Narayan Kunchur +6
The magnetic properties of the van der Waals magnetic topological insulators MnBiTe and MnBiTe are investigated by magneto-transport measurements. We evidence that…
Percolative Mott insulator-metal transition in doped SrIrO
Zhixiang Sun, Jose M. Guevara, Steffen Sykora +7
Despite many efforts to rationalize the strongly correlated electronic ground states in doped Mott insulators, the nature of the doping induced insulator to metal transition is sti…
Thickness dependence of the anomalous Nernst effect and the Mott relation of Weyl-semimetal Co2MnGa thin films
Gyu-Hyeon Park, Helena Reichlova, Richard Schlitz +12
We report a robust anomalous Nernst effect in Co2MnGa thin films in the thickness regime between 20 and 50 nm. The anomalous Nernst coefficient varied in the range of -2.0 to -3.0…
Evolution of the nematic susceptibility in LaFeCoAsO
Xiaochen Hong, Federico Caglieris, Rhea Kappenberger +8
The identification of electronic nematicity across series of iron-based superconductors raises the question of its relationship with superconductivity and other ordered states. Her…
Large spin Hall magnetoresistance in antiferromagnetic α-Fe2O3/Pt heterostructures
Johanna Fischer, Matthias Althammer, Nynke Vlietstra +5
We investigate the spin Hall magnetoresistance (SMR) at room temperature in thin film heterostructures of antiferromagnetic, insulating, (0001)-oriented alpha-Fe2O3 (hematite) and…
Strain-derivative of thermoelectric properties: a sensitive probe for nematicity
Federico Caglieris, Christoph Wuttke, Xiaochen Hong +6
The nematic instability of iron-based superconductors is an undebatable ingredient of the physics of iron-based superconductors. Yet, its origin remains enigmatic as it involves a…
Berry curvature unravelled by the Nernst effect in MnGe
Christoph Wuttke, Federico Caglieris, Steffen Sykora +8
The discovery of topological quantum materials represents a striking innovation in modern condensed matter physics with remarkable fundamental and technological implications. Their…
Magnetoresistance and anomalous Hall effect in micro-ribbons of the magnetic Weyl semimetal CoSnS
Kevin Geishendorf, Richard Schlitz, Praveen Vir +5
Magnetic Weyl semimetals exhibit intriguing transport phenomena due to their non-trivial band structure. Recent experiments in bulk crystals of the shandite-type CoSnS…
All Electrical Access to Topological Transport Features in MnPtSn Films
Richard Schlitz, Peter Swekis, Anastasios Markou +7
The presence of non-trivial magnetic topology can give rise to non-vanishing scalar spin chirality and consequently a topological Hall or Nernst effect. In turn, topological transp…
Spectroscopic evidence of nematic fluctuations in LiFeAs
Zhixiang Sun, Pranab Kumar Nag, Steffen Sykora +8
The role of nematic fluctuations in the pairing mechanism of iron-based superconductors is frequently debated. Here we present a novel method to reveal such fluctuations by identif…
Topological Hall effect in thin films of MnPtSn
Peter Swekis, Anastasios Markou, Dominik Kriegner +5
Spin chirality in metallic materials with non-coplanar magnetic order can give rise to a Berry phase induced topological Hall effect. Here, we report the observation of a large top…
Mapping of the energetically lowest exciton in bulk -HfS
Carsten Habenicht, Lorenzo Sponza, Roman Schuster +2
By combining electron energy-loss spectroscopy and state-of-the-art computational methods, we were able to provide an extensive picture of the excitonic processes in -HfS.…