12 citations · 84 across the 30 of their papers we have counts for
30 papers
Observation of thermal Hall effect in diamond
Marcin Matusiak, Andrzej Ptok, Maria Szlawska +1
Numerous insulators, including non-magnetic ones, have been unexpectedly found to display a finite thermal Hall signal, which has stimulated debate about its origin. Here, we repor…
Contrasting anisotropic electron-phonon-spin coupling in FeGeTe and FeGeTe: A helicity-resolved Raman study
Smrutiranjan Mekap, Jyoti Saini, Andrzej Ptok +4
Two-dimensional van der Waals ferromagnets FeGeTe (F3GT) and FeGeTe (F5GT) exhibit pronounced magneto-optical responses, which open promising platforms for investi…
Theoretical investigation of the photovoltaic properties of MgSnN for multi-junction solar cells
Issam Mahraj, Mossab Oublal, Andrzej Ptok
The orthorhombic crystal structure of the MgSnN compound with Pna2 symmetry has been investigated as a low-cost, non-toxic material for photovoltaic (PV) applications using…
Tuning of anomalous magnetotransport properties in half-Heusler topological semimetal GdPtBi
Orest Pavlosiuk, Piotr Wiśniewski, Romain Grasset +3
Half-Heusler compounds from the PtBi family exemplify Weyl semimetals in which external magnetic field induce Weyl nodes. These materials exceptionally host topologically non-t…
Transverse and Longitudinal Magnetothermopower Promoted by Ambipolar Effect in Half-Heusler Topological Materials
Orest Pavlosiuk, Marcin Matusiak, Andrzej Ptok +2
Topologically trivial and non-trivial semimetals with a high degree of carrier compensation are well known for demonstrating large transverse magnetothermopower (). However…
Topological properties of spin block magnetic ladders in proximity of a superconductor: application to BaFeS
Shivam Yadav, Pascal Simon, Andrzej Ptok
Monoatomic chains with magnetic order in proximity of a s-wave superconductor can host Majorana edge modes. In this paper, we extend this idea to more complex spin-block chains suc…
Kagome edge states under lattice termination, spin-orbit coupling, and magnetic order
Sajid Sekh, Annica M. Black-Schaffer, Andrzej Ptok
We study the edge state properties of a two-dimensional kagome lattice using a tight-binding approach, focusing on the role of lattice termination, spin-orbit coupling, and magneti…
Electronic and magnetic properties of the NdNiO/SrTiO thin films
Sajid Sekh, Andrzej Ptok, Wojciech Brzezicki +2
The hole-doped NdNiO layer deposited on the SrTiO surface exhibits unconventional superconductivity. Here, we present a systematic study of the electronic and magnetic pr…
Topological character of the antiferromagnetic EuMgBi
Mazharul Islam Mondal, Issam Mahraj, Milo Sprague +8
Antiferromagnetic EuMPn compounds, where M is a metal element and Pn is a pnictogen element, have been recognized as candidates for realizing a topologically nontrivial…
Anisotropic electron-phonon coupling and chiral phonons in van der Waals room temperature ferromagnet FeGeTe
Smrutiranjan Mekap, Andrzej Ptok, Jyoti Saini +3
The layered van der Waals FeGeTe (F5GT) compound exhibits room-temperature ferromagnetism, making it a promising candidate for technological applications. In our study, com…
Electronic band structure of a nodal line semimetal candidate ErSbTe
Iftakhar Bin Elius, Nathan Valadez, Dante James +6
The LnSbTe family is well known for hosting a plethora of intriguing characteristics stemming from its crystalline symmetry, magnetic structure, 4f electronic correlations and spin…
Observation of momentum dependent charge density wave gap in EuTe4
Iftakhar Bin Elius, Nathan Valadez, Gyanendra Dhakal +10
The occurrence of charge density wave (CDW) phenomena, particularly in low dimensional rare-earth chalcogenides, has attracted substantial research interest. Among these materials,…
Nature of field-induced transitions and hysteretic magnetoresistance in non-collinear antiferromagnet EuIn2As2
Karan Singh, Jan Skolimowski, Giuseppe Cuono +8
We examine the magnetic and electrical transport properties of the hexagonal EuIn2As2 compound, combining experimental and theoretical results. This compound is predicted to be an…
Phonon Weyl points and chiral edge modes with unconventional Fermi arcs in NbSi
Issam Mahraj, Andrzej Ptok
NbSi crystallizes in the P622 symmetry, featuring chiral chains of Si atoms. The absence of inversion symmetry, combined with its chiral structure, gives arise to uniqu…
Landau levels in Weyl semimetal under uniaxial strain
Shivam Yadav, Andrzej Ptok
The external strain can lead to the similar effect to the external applied magnetic field. Such pseudomagnetic field can be larger than typical magnetic fields, what gives the oppo…
Unveiling the interplay of magnetic order and electronic band structure on the evolution of anomalous Hall effect in MnPtGa single crystal
Gourav Dwari, Shovan Dan, Bishal Baran Maity +8
The recent studies on the anomalous Hall effect (AHE) have revealed an intrinsic relationship between the topological band structure and the experimentally observed transverse cond…
Type-II Weyl nodes, flat bands, and evidence for a topological Hall-effect in the new ferromagnet FeCrTe
Shyam Raj Karullithodi, Vadym Kulichenko, Mario A. Plata +5
The interplay between linearly dispersing or Dirac-like, and flat electronic bands, for instance, in the kagome ferromagnets, has attracted attention due to a possible interplay be…
Low-lying Electronic Structure of Rare-Earth Based Topological Nodal Line Semimetal Candidate DySbTe
Nathan Valadez, Iftakhar Bin Elius, Dante James +11
Lanthanide (Ln) based LnSbTe materials have garnered significant attention due to rich interplay of long range magnetic ordering and topological properties, driven by unique crysta…
Correlation stabilized ferromagnetic MnRuAs with distorted kagome lattice
Anusree C, Andrzej Ptok, Paweł Sobieszczyk +2
We present an in-depth analysis of MnRuAs, a compound crystallizing in the P2m symmetry with a distorted kagome lattice, revealing its distinctive structural, magnetic, an…
Origin of -type antiferromagnetism and chiral split magnons in altermagnetic -MnTe
Mojtaba Alaei, Pawel Sobieszczyk, Andrzej Ptok +3
The origin of the -type antiferromagnetic ordering, characterized by ferromagnetic layers coupling antiferromagnetically, in the prototype semiconductor altermagnet -MnTe has…
Chiral phononic and electronic edge modes of EuPtSi
Issam Mahraj, Andrzej Ptok
Systems with P23 symmetry are characterized by the realization of chiral edge modes, propagating in one direction along closed loops around some high symmetry points of the B…
Insulating Half-Heusler TmPdSb with Unusual Band Order and Metallic Surface States
Shovan Dan, Andrzej Ptok, Orest Pavlosiuk +3
We present theoretical and experimental results exploring a half-Heusler compound TmPdSb with unusual band order and metallic surface states. Typically, the half-Heusler systems ex…
Electronic Structure of a Nodal Line Semimetal Candidate TbSbTe
Iftakhar Bin Elius, Jacob F Casey, Sabin Regmi +15
The LnSbTe (Ln = Lanthanides) family, like isostructural ZrSiS type compounds, has emerged as a fertile playground for exploring the interaction of electronic correlations and magn…
Dirac Dispersions and Fermi Surface Nesting in LaCuSb
Marcin Rosmus, Natalia Olszowska, Zbigniew Bukowski +3
LaCuSb is a superconductor with a transition temperature of about K and is a potential platform where Dirac fermions can be experimentally observed. In this…