Jonathan Noky
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View article: High pressure induced superconductivity and chirality-neutral Fermi surface in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>SrS</mml:mi><mml:msub><mml:mi mathvariant="normal">i</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>
High pressure induced superconductivity and chirality-neutral Fermi surface in Open
In this study, we investigate the electronic structure and topological properties of the compound SrSi2 using angle-resolved photoemission spectroscopy (ARPES), electrical transport measurements, and calculations. In contrast to recent the…
View article: Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins
Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins Open
The kagome network is a unique platform that harbors a diversity of special electronic states due to its inherent band structure features comprising Dirac cones, van Hove singularities, and flat bands. Some kagome-based metals have recentl…
View article: Pressure-induced superconductivity in monoclinic RhBi$_2$
Pressure-induced superconductivity in monoclinic RhBi$_2$ Open
RhBi$_2$ is a polymorphic system that exhibits two distinct phases. RhBi$_2$ in the triclinic phase has been identified as a weak topological insulator with a van Hove singularity point close to the Fermi energy. Thus, triclinic RhBi$_2$ i…
View article: Enhancement of the anomalous Hall effect by distorting the Kagome lattice in an antiferromagnetic material
Enhancement of the anomalous Hall effect by distorting the Kagome lattice in an antiferromagnetic material Open
In topological magnetic materials, the topology of the electronic wave function is strongly coupled to the structure of the magnetic order. In general, ferromagnetic Weyl semimetals generate a strong anomalous Hall conductivity (AHC) due t…
View article: Extended Berry Curvature Tail in Ferromagnetic Weyl Semimetals NiMnSb and PtMnSb
Extended Berry Curvature Tail in Ferromagnetic Weyl Semimetals NiMnSb and PtMnSb Open
Heusler compounds belong to a large family of materials and exhibit numerous physical phenomena with promising applications, particularly ferromagnetic Weyl semimetals for their use in spintronics and memory devices. Here, anomalous Hall t…
View article: Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins
Orbital selective commensurate modulations of the local density of states in ScV6Sn6 probed by nuclear spins Open
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 cones, van-Hove singularities, and flat bands. Some Kagome-ba…
View article: Large anomalous Hall, Nernst effect and topological phases in the 3d-4d/5d-based oxide double perovskites
Large anomalous Hall, Nernst effect and topological phases in the 3d-4d/5d-based oxide double perovskites Open
Magnetism and spin-orbit coupling are two fundamental and interconnected properties of oxide materials, that can give rise to various topological transport phenomena, including anomalous Hall and anomalous Nernst effects. These transport r…
View article: Large anomalous Hall, Nernst effect and topological phases in the 3d-4d/5d based oxide double perovskites
Large anomalous Hall, Nernst effect and topological phases in the 3d-4d/5d based oxide double perovskites Open
Magnetic topological quantum materials are attracting considerable attention owing to their potential technological applications. However, only a small number of these materials have been experimentally realized, thereby giving rise to the…
View article: Berry curvature induced anomalous Hall conductivity in magnetic topological oxide double perovskite Sr2FeMoO6
Berry curvature induced anomalous Hall conductivity in magnetic topological oxide double perovskite Sr2FeMoO6 Open
Oxide materials exhibit several novel structural, magnetic, and electronic properties. Their stability under ambient conditions, easy synthesis, and high transition temperatures provide such systems with an ideal ground for realizing topol…
View article: Large Room Temperature Anomalous Transverse Thermoelectric Effect in Kagome Antiferromagnet YMn<sub>6</sub>Sn<sub>6</sub>
Large Room Temperature Anomalous Transverse Thermoelectric Effect in Kagome Antiferromagnet YMn<sub>6</sub>Sn<sub>6</sub> Open
Kagome magnets possess several novel nontrivial topological features owing to the strong correlation between topology and magnetism that extends to their applications in the field of thermoelectricity. Conventional thermoelectric (TE) devi…
View article: Conservation of chirality at a junction between two Weyl semimetals
Conservation of chirality at a junction between two Weyl semimetals Open
In Weyl semimetals the location of linear band crossings, the Weyl cones, is\nnot bound to any high symmetry point of the Brillouin zone, unlike the Dirac\nnodes in graphene. This flexibility is advantageous for valleytronics, where\ninfor…
View article: Anisotropic Nodal‐Line‐Derived Large Anomalous Hall Conductivity in ZrMnP and HfMnP
Anisotropic Nodal‐Line‐Derived Large Anomalous Hall Conductivity in ZrMnP and HfMnP Open
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 physical properties. Within this class, a group of nontrivia…
View article: Large Anomalous Hall and Nernst Effects in High Curie‐Temperature Iron‐Based Heusler Compounds
Large Anomalous Hall and Nernst Effects in High Curie‐Temperature Iron‐Based Heusler Compounds Open
The interplay between topology and magnetism has recently sparked the frontier studies of magnetic topological materials that exhibit intriguing anomalous Hall and Nernst effects owning to the large intrinsic Berry curvature (BC). To bette…
View article: Observation of pressure-induced Weyl state and superconductivity in a chirality-neutral Weyl semimetal candidate SrSi2
Observation of pressure-induced Weyl state and superconductivity in a chirality-neutral Weyl semimetal candidate SrSi2 Open
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 experimentally realized as Weyl semimetals (WSMs) lack either mirror …
View article: Three-dimensional quasi-quantized Hall insulator phase in SrSi2
Three-dimensional quasi-quantized Hall insulator phase in SrSi2 Open
In insulators, the longitudinal resistivity becomes infinitely large at zero temperature. For classic insulators, the Hall conductivity becomes zero at the same time. However, there are special systems, such as two-dimensional quantum Hall…
View article: Observation of chirality-neutral Fermi surface in Weyl semimetal candidate SrSi2.
Observation of chirality-neutral Fermi surface in Weyl semimetal candidate SrSi2. Open
Quasiparticle excitations described by the Weyl equation in solids have attracted massive attention in recent years. So far, a wide range of solids have been experimental realized as Weyl semimetals (WSMs). On the other hand, for a compoun…
View article: (Quasi-)Quantization of the electrical, thermal, and thermoelectrical conductivities in two and three dimensions
(Quasi-)Quantization of the electrical, thermal, and thermoelectrical conductivities in two and three dimensions Open
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 two dimensions are also reported to be quantized in specific…
View article: Three-dimensional quasi-quantized Hall effect in bulk InAs
Three-dimensional quasi-quantized Hall effect in bulk InAs Open
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. It has recently been observed in layered materials, consistin…
View article: Quasi-quantized Hall response in bulk InAs
Quasi-quantized Hall response in bulk InAs Open
The quasi-quantized Hall effect (QQHE) is the three-dimensional (3D)\ncounterpart of the integer quantum Hall effect (QHE),exhibited only by\ntwo-dimensional (2D) electron systems. It has recently been observed in layered\nmaterials, consi…
View article: Field-Modulated Anomalous Hall Conductivity and Planar Hall Effect in Co<sub>3</sub>Sn<sub>2</sub>S<sub>2</sub> Nanoflakes
Field-Modulated Anomalous Hall Conductivity and Planar Hall Effect in Co<sub>3</sub>Sn<sub>2</sub>S<sub>2</sub> Nanoflakes Open
Time-reversal-symmetry-breaking Weyl semimetals (WSMs) have attracted great attention recently because of the interplay between intrinsic magnetism and topologically nontrivial electrons. Here, we present anomalous Hall and planar Hall eff…
View article: Effect of uniaxial stress on the electronic band structure of NbP
Effect of uniaxial stress on the electronic band structure of NbP Open
The Weyl semimetal NbP exhibits a very small Fermi surface consisting of two electron and two hole pockets, whose fourfold degeneracy in $k$ space is tied to the rotational symmetry of the underlying tetragonal crystal lattice. By applying…
View article: Giant anomalous Hall and Nernst effect in magnetic cubic Heusler compounds
Giant anomalous Hall and Nernst effect in magnetic cubic Heusler compounds Open
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 strongly enhanced by designing a large Berry curvature in …
View article: Pressure tuning of the anomalous Hall effect in the chiral antiferromagnet Mn<sub>3</sub>Ge
Pressure tuning of the anomalous Hall effect in the chiral antiferromagnet Mn<sub>3</sub>Ge Open
We report on the pressure evolution of the giant anomalous Hall effect (AHE) in the chiral antiferromagnet Mn$_3$Ge. The AHE originating from the non-vanishing Berry curvature in Mn$_3$Ge can be continuously tuned by application of hydrost…
View article: (Quasi-)Quantization of the electrical, thermal, and thermoelectrical\n conductivities in two and three dimensions
(Quasi-)Quantization of the electrical, thermal, and thermoelectrical\n conductivities in two and three dimensions Open
The quantum Hall effect in a 2D electron system expresses a topological\ninvariant, leading to a quantized conductivity. The thermal Hall and\nthermoelectric Nernst conductances in two dimensions are also reported to be\nquantized in speci…
View article: Giant anomalous Hall and Nernst effect in magnetic cubic Heusler compounds
Giant anomalous Hall and Nernst effect in magnetic cubic Heusler compounds Open
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 strongly enhanced by designing a strong Berry curvature in…