333 citations · 943 across the 22 of their papers we have counts for
22 papers
Pressure-induced superconductivity in monoclinic RhBi
KeYuan Ma, Subhajit Roychowdhury, Jonathan Noky +5
RhBi is a polymorphic system that exhibits two distinct phases. RhBi in the triclinic phase has been identified as a weak topological insulator with a van Hove singularity…
Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins
Robin Guehne, Jonathan Noky, Changjiang Yi +4
The Kagome network is a unique platform in solid state physics that harbors a diversity of special electronic states due to its inherent band structure features comprising Dirac co…
Large anomalous Hall, Nernst effect and topological phases in the 3d-4d/5d based oxide double perovskites
Kartik Samanta, Jonathan Noky, Iñigo Robredo +3
Magnetic topological quantum materials are attracting considerable attention owing to their potential technological applications. However, only a small number of these materials ha…
Berry curvature induced anomalous Hall conductivity in magnetic topological oxide double perovskite Sr2FeMoO6
Tirthankar Chakraborty, Kartik Samanta, Satya N. Guin +7
Oxide materials exhibit several novel structural, magnetic, and electronic properties. Their stability under ambient conditions, easy synthesis, and high transition temperatures pr…
Anisotropic Nodal-Line-Derived Large Anomalous Hall Conductivity in ZrMnP and HfMnP
Sukriti Singh, Jonathan Noky, Shaileyee Bhattacharya +5
The nontrivial band structure of semimetals has attracted substantial research attention in condensed matter physics and materials science in recent years owing to its intriguing p…
Three-dimensional quasi-quantized Hall insulator phase in SrSi2
Kaustuv Manna, Nitesh Kumar, Sumanta Chattopadhyay +15
In insulators, the longitudinal resistivity becomes infinitely large at zero temperature. For classic insulators, the Hall conductivity becomes zero at the same time. However, ther…
Conservation of chirality at a junction between two Weyl semimetals
Serguei Tchoumakov, Bogusz Bujnowski, Jonathan Noky +3
In Weyl semimetals the location of linear band crossings, the Weyl cones, is not bound to any high symmetry point of the Brillouin zone, unlike the Dirac nodes in graphene. This fl…
Observation of pressure-induced Weyl state and superconductivity in a chirality-neutral Weyl semimetal candidate SrSi2
M. -Y. Yao, J. Noky, Q. -G. Mu +7
Quasi-particle excitations in solids described by the Weyl equation have attracted significant attention in recent years. Thus far, a wide range of solids that have been experiment…
Quasi-quantized Hall response in bulk InAs
Rafał Wawrzyńczak, Stanislaw Galeski, Jonathan Noky +3
The quasi-quantized Hall effect (QQHE) is the three-dimensional (3D) counterpart of the integer quantum Hall effect (QHE),exhibited only by two-dimensional (2D) electron systems. I…
Hard Magnetic Topological Semimetals in XPt3: Harmony of Berry Curvature
Anastasios Markou, Jacob Gayles, Elena Derunova +6
Topological magnetic semimetals, like Co3Sn2S2 and Co2MnGa, are known to display exotic transport properties, such as large intrinsic anomalous (AHE) due to uncompensated Berry cur…
Effect of uniaxial stress on the electronic band structure of NbP
Clemens Schindler, Jonathan Noky, Marcus Schmidt +3
The Weyl semimetal NbP exhibits a very small Fermi surface consisting of two electron and two hole pockets, whose fourfold degeneracy in space is tied to the rotational symmetr…
Linear Response in Topological Materials
Jonathan Noky, Yan Sun
The discovery of topological insulators and semimetals has opened up a new perspective to understand materials. Owing to the special band structure and enlarged Berry curvature, th…
Pressure tuning of the anomalous Hall effect in the chiral antiferromagnet Mn3Ge
R. D. dos Reis, M. Ghorbani Zavareh, M. O. Ajeesh +9
We report on the pressure evolution of the giant anomalous Hall effect (AHE) in the chiral antiferromagnet MnGe. The AHE originating from the non-vanishing Berry curvature in M…
(Quasi-)Quantization of the electrical, thermal, and thermoelectrical conductivities in two and three dimensions
Jonathan Noky, Johannes Gooth, Yan Sun +1
The quantum Hall effect in a 2D electron system expresses a topological invariant, leading to a quantized conductivity. The thermal Hall and thermoelectric Nernst conductances in t…
Giant anomalous Hall and Nernst effect in magnetic cubic Heusler compounds
Jonathan Noky, Yang Zhang, Claudia Felser +1
The interplay of magnetism and topology opens up the possibility for exotic linear response effects, such as the anomalous Hall effect and the anomalous Nernst effect, which can be…
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…
Evidence for an axionic charge density wave in the Weyl semimetal (TaSe4)2I
Johannes Gooth, Barry Bradlyn, Shashank Honnali +9
An axion insulator is a correlated topological phase, predicted to arise from the formation of a charge density wave in a Weyl semimetal. The accompanying sliding mode in the charg…
Large anomalous Hall and Nernst effect from nodal line symmetry breaking in FeMnX (X=P,As,Sb)
Jonathan Noky, Claudia Felser, Yan Sun
A large Berry curvature in the vicinity of the Fermi energy is required in order to obtain a large anomalous Hall and Nernst effect. This Berry curvature can be induced by Weyl poi…
Characterization of topological band structures away from the Fermi level by anomalous Nernst measurements
Jonathan Noky, Johannes Gooth, Claudia Felser +1
Resolving the structure of energy bands in transport experiments is a major challenge in condensed matter physics and material science. Sometimes, however, traditional electrical c…
Anomalous Nernst effect beyond the magnetization scaling relation in the ferromagnetic Heusler compound CoMnGa
Satya N. Guin, Kaustuv Manna, Jonathan Noky +8
Applying a temperature gradient in a magnetic material generates a voltage that is perpendicular to both the heat flow and the magnetization. This is the anomalous Nernst effect (A…
Topological Contributions to the Anomalous Nernst and Hall Effect in the Chiral Double-Helimagnetic System
Jacob Gayles, Jonathan Noky, Claudia Felser +1
MnP and FeP are show complex magnetic spiral states with geometric phase contributions to the anomalous Hall effect and the topological Hall effect, where both have thermoelectric…
Strong anomalous Nernst effect in collinear magnetic Weyl semimetals without net magnetic moments
Jonathan Noky, Jacob Gayles, Claudia Felser +1
We predict a large anomalous Nernst effect in the inverse Heusler compensated ferrimagnets TiMn (=Al,Ga,In) with vanishing net magnetic moments. Though the net magnetic m…