48 citations · 192 across the 27 of their papers we have counts for
29 papers
Anisotropic spin splitting in -MnTe epilayers on InP(111)A and Si(111) substrates
Zofia Kopacz-Maj, Ali Akbar, Aleksandr Kazakov +9
-MnTe has emerged as a prototypical altermagnetic material, combining compensated antiferromagnetic order with momentum-dependent spin splitting. Here, we investigate the struct…
Far-field terahertz spectroscopy across the charge-density-wave transition in 2H-NbSe
Dmitriy Yavorskiy, Adil Rehman, Wojciech Brzezicki +7
Charge-density-wave (CDW) formation in 2H-NbSe modifies the low-energy electronic structure and gives rise to collective excitations coupled to the lattice. Here, we investigat…
Vertical quantum confinement in bulk MoS
Jairo Obando-Guevara, Álvaro González-García, Marcin Rosmus +5
We experimentally observe quantum confinement states in bulk MoS using Angle-Resolved Photoemission Spectroscopy (ARPES). The band structure at the point reveals q…
Tuning Dirac-Rashba and Double Dirac Cone Surface States of Topological Crystalline Insulator PbSnSe by Transition Metal Adsorbate
Bartłomiej Turowski, Wojciech Brzezicki, Ondřej Caha +9
The electronic structure of topological insulator/magnetic metal (TI/MM) interfaces is of great importance for understanding of exotic spin-dependent phenomena and realization of a…
Magnetically tunable symmetry-enforced nodal lines producing huge anomalous Hall conductivity in altermagnetic -MnTe
Mathews Benny, Xujia Gong, Amar Fakhredine +17
Altermagnetic -MnTe exhibits huge anomalous Hall conductivity (AHC) up to room-temperature together with weak ferromagnetism arising from spin and orbital polarizations. We clar…
Magnetic Frustration Enforced Electronic Reconstruction in Ni intercalated NbSe: Suppression of Electronic Orders
Ashutosh S. Wadge, Alexander Kazakov, Xujia Gong +14
We investigate the single crystals of NiNbSe, revealing that Ni intercalation profoundly alters the physical properties of NbSe. Magnetic measurements clearly show…
Robust Orbital-Selective Flat Bands in Transition-Metal Oxychlorides
Xiangyu Luo, Ludovica Zullo, Sahaj Patel +10
Flat electronic bands, which amplify electron correlations by quenching kinetic energy, provide an ideal foundation for exotic quantum phases. However, prevailing strategies -- inc…
Experimental electronic structure of the mineral superconductor covellite CuS
Alexandre Antezak, Takemi Kato, Pedro Rezende Gonçalves +5
Covellite (CuS) is the first known natural mineral superconductor. Despite its simple chemical formula, covellite exhibits a rich crystal structure at the origin of several remarka…
Magnetic Excitations of a Half-Filled Tl-based Cuprate
I. Biało, Q. Wang, J. Küspert +21
Strong electron correlations drive Mott insulator transitions. Yet, there exists no framework to classify Mott insulators by their degree of correlation. Cuprate superconductors, w…
Metallic layered materials with magnetic frustration: An ARPES view of the SmAuAlGe and TbAuAlGe
P. Rezende-Gonçalves, A. Antezak, T. Kato +10
Compounds of the new materials class LnTAlX (Ln = lanthanide, X = tetrel, T = transition metal) host exotic magnetic phenomena due to geometric frustration induced by their…
ARPES studies of Hf(0001) surface: flat bands formation in the dice lattice
Laxman Nagireddy, Saleem Ayaz Khan, Maria Christine Richter +8
We present the first electronic structure measurements of the Hf(0001) single-crystal surface using angle-resolved photoemission spectroscopy (ARPES). The ARPES results are support…
Tunable Octdong and Spindle-Torus Fermi Surfaces in Kramers Nodal Line Metals
Gabriele Domaine, Moritz H. Hirschmann, Kirill Parshukov +9
It has recently been proposed that all achiral non-centrosymmetric crystals host so-called Kramers nodal lines, which are doubly degenerate band crossings connecting time-reversal…
Observation of the Dirac Dispersions in Co-doped CaFe2As2
Marcin Rosmus, Natalia Olszowska, Rafal Kurleto +2
We performed an angle-resolved photoemission spectroscopy (ARPES) study of the electronic structure of the CaFeAs 122-iron pnictide, a parent compound, and two iron-based s…
Linear dichroism of the optical properties of SnS and SnSe van der Waals crystals
Agata K. Tołłoczko, Jakub Ziembicki, Miłosz Grodzicki +6
Tin monochalcogendies SnS and SnSe, belonging to a familiy of van der Waals crystals isoelectronic to black phosphorus, are know as enivornmetally-friendly materials promisng for t…
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…
Emergent impervious band crossing in the bulk in topological nodal line semimetal ZrAs
A. S. Wadge, K. Zberecki, B. J. Kowalski +8
Topological nodal-line semimetals represent a unique class of materials with intriguing electronic structures and rich of symmetries, hosting electronic states with nontrivial topo…
Intercalation-induced states at the Fermi level and the coupling of intercalated magnetic ions to conducting layers in NiNbS
Yuki Utsumi Boucher, Izabela Biało, Mateusz A. Gala +11
The magnetic sublayers introduced by intercalation into the host transition-metal dichalcogenide (TMD) are known to produce various magnetic states. The magnetic sublayers and thei…
Valley-Polarized quantum Hall phase in a strain-controlled Dirac system
G. Krizman, J. Bermejo-Ortiz, T. Zakusylo +9
In multivalley systems, the valley pseudospin offers rich physics going from encoding of information by its polarization (valleytronics), to exploring novel phases of matter when i…
Temperature Dependence of Relativistic Valence Band Splitting Induced by an Altermagnetic Phase Transition
M. Hajlaoui, S. W. D'Souza, L. Šmejkal +13
Altermagnetic (AM) materials exhibit non-relativistic, momentum-dependent spin-split states, ushering in new opportunities for spin electronic devices. While the characteristics of…
A Novel Ferroelectric Rashba Semiconductor
Gauthier Krizman, Tetiana Zakusylo, Lakshmi Sajeev +8
Fast, reversible, and low-power manipulation of the spin texture is crucial for next generation spintronic devices like non-volatile bipolar memories, switchable spin current injec…
3D Topological Semimetal Phases of Strained -Sn on Insulating Substrate
Jakub Polaczyński, Gauthier Krizman, Alexandr Kazakov +15
-Sn is an elemental topological material, whose topological phases can be tuned by strain and magnetic field. Such tunability offers a substantial potential for topological elec…
Experimental observation of metallic states with different dimensionality in a quasi-1D charge density wave compound
P. Rezende-Gonçalves, M. Thees, J. Rojas Castillo +14
TaTe is a quasi-1D tetrachalcogenide that exhibits a CDW instability caused by a periodic lattice distortion. Recently, pressure-induced superconductivity has been achieved in…
Influence of Structural Defects on Charge Density Waves in 1T-TaS2
I. Lutsyk, K. Szalowski, P. Krukowski +22
The influence of intrinsic defects of 1T-TaS2 on charge density waves (CDW) is studied using scanning tunneling microscopy and spectroscopy (STM, STS), angle-resolved photoelectron…
Electronic band structure and surface states in Dirac semimetal LaAgSb
Marcin Rosmus, Natalia Olszowska, Zbigniew Bukowski +3
LaAgSb is a Dirac semimetal showing charge density wave (CDW) order. Previous ARPES results suggest the existence of the Dirac-cone-like structure in the vicinity of the Ferm…