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
23 papers · 1 filter
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…
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…
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…
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…
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…
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…
An ultra-high vacuum scanning tunneling microscope operating at sub-Kelvin temperatures and high magnetic fields for spin-resolved measurements
C. Salazar, D. Baumann, T. Hänke +7
We present the construction and performance of an ultra-low temperature scanning tunneling microscope (STM), working in ultra-high vacuum conditions (UHV) and in high magnetic fiel…
Heat transport of cuprate-based low-dimensional quantum magnets with strong exchange coupling
Christian Hess
Transport properties provide important access to a solid's quasiparticles, such as quasiparticle density, mobility, and scattering. The transport of heat can be particularly reveal…
Large Thermal Hall Effect in -RuCl: Evidence for Heat Transport by Kitaev-Heisenberg Paramagnons
Richard Hentrich, Maria Roslova, Anna Isaeva +4
The honeycomb Kitaev model in a magnetic field is a source of a topological quantum spin liquid with Majorana fermions and gauge flux excitations as fractional quasiparticles. We p…
Carrier dynamics in doped bilayer iridates near magnetic quantum criticality
Shouryya Ray, Matthias Vojta
Motivated by experiments on the carrier-doped bilayer iridate , we study the dynamics of a single doped electron in a bilayer m…
Spin-polaron ladder spectrum of the spin-orbit-induced Mott insulator SrIrO probed by scanning tunneling spectroscopy
Jose M. Guevara, Zhixiang Sun, Ekaterina M. Pärschke +8
The motion of doped electrons or holes in an antiferromagnetic lattice with strong on-site Coulomb interactions touches one of the most fundamental open problems in contemporary co…
Fractionalized Fermi liquids and exotic superconductivity in the Kitaev-Kondo lattice
Urban F. P. Seifert, Tobias Meng, Matthias Vojta
Fractionalized Fermi liquids (FL) have been introduced as non-Fermi-liquid metallic phases, characterized by coexisting electron-like charge carriers and local moments which…
Helimagnon resonances in an intrinsic chiral magnonic crystal
Mathias Weiler, Aisha Aqeel, Maxim Mostovoy +6
We experimentally study magnetic resonances in the helical and conical magnetic phases of the chiral magnetic insulator CuOSeO at the temperature =5 K. Using a broadband…
Large field-induced gap of Kitaev-Heisenberg paramagnons in -RuCl
Richard Hentrich, Anja U. B. Wolter, Xenophon Zotos +12
The honeycomb Kitaev-Heisenberg model is a source of a quantum spin liquid with Majorana fermions and gauge flux excitations as fractional quasiparticles. In the quest of finding a…
Spin dynamics and magnetic interactions of Mn dopants in the topological insulator BiTe
S. Zimmermann, F. Steckel, C. Hess +5
The magnetic and electronic properties of the magnetically doped topological insulator BiMnTe were studied using electron spin resonance (ESR) and measure…
Tuning the magnetocrystalline anisotropy in CoPO by means of substitution: a ferromagnetic resonance study
G. Prando, A. Alfonsov, A. Pal +3
We report on broad-band electron spin resonance measurements performed within the itinerant ferromagnetic phase of CoPO ( = La, Pr, Nd and Sm). We reveal that the substit…
Effects of quantum impurity spins on the magnetic properties of zigzag and linear spin chains
Koushik Karmakar, Markos Skoulatos, Giacomo Prando +5
We investigated the magnetic ground state and low-energy excitations of the spin chains compounds SrCuO (zigzag chains) and SrCuO (linear chains) in the presence…
Ba2YIrO6: A cubic double perovskite material with Ir5+ ions
T. Dey, A. Maljuk, D. V. Efremov +13
Materials with a 5d4 electronic configuration are generally considered to have a nonmagnetic ground state (J=0). Interestingly, Sr2YIrO6 (Ir5+ having 5d4 electronic configuration)…
Influence of hydrostatic pressure on the bulk magnetic properties of EuIrO
G. Prando, R. Dally, W. Schottenhamel +7
We report on the magnetic properties of EuIrO upon the application of hydrostatic pressure by means of macroscopic and local-probe techniques. In contrast to…
Pseudospin heat conductivity in the antiferromagnet SrIrO
Frank Steckel, Akiyo Matsumoto, Tomohiro Takayama +3
We report the in-plane and out-of-plane heat conductivity of the antiferromagnetic spin-orbit induced Mott insulator SrIrO with . Our data reveal clea…
Bond disorder and spinon heat transport in the Heisenberg spin chain compound SrCuO: from clean to dirty limits
A. Mohan, N. Sekhar Beesetty, N. Hlubek +4
We investigate the effect of disorder on the heat transport properties of the Heisenberg chain compound SrCuO upon chemically substituting Sr by increasing…
Spin density wave order and fluctuations in Mn3Si: a transport study
Frank Steckel, Steven Rodan, Regina Hermann +4
We present a comprehensive transport investigation of the itinerant antiferromagnet Mn3Si which undergoes a spin density wave (SDW) order below T_N~21.3K. The electrical resistivit…