52 citations · 338 across the 26 of their papers we have counts for
26 papers
Disentangling bulk and surface states in the electronic structure of PtBi(0001)
Stefanie Suzanne Brinkman, Xin Liang Tan, Anders Christian Mathisen +13
Recent reports of surface-localized topological superconductivity in trigonal PtBi highlight the importance of understanding its surface electronic structure. We investigate th…
Fermiology and spin polarization of topological surface states in PtBi
Anders Christian Mathisen, Xin Liang Tan, Stefanie Suzanne Brinkman +12
Layered PtBi is a candidate for topological superconductivity arising in Fermi-arc surface states. Using spin- and angle-resolved photoemission spectroscopy, we demonstrate tha…
Point-contact enhanced superconductivity in trigonal PtBi2: quest for the origin of high-Tc
O. E. Kvitnitskaya, L. Harnagea, G. Shipunov +6
We studied enhanced superconductivity in point contacts (PCs) based on a type-I Weyl semimetal trigonal t-PtBi2 using both normal metal (Ag, Cu, Pt) and ferromagnetic (Fe, Co, Ni)…
Temperature dependence of surface superconductivity in t-PtBi
Julia Besproswanny, Sebastian Schimmel, Yanina Fasano +5
The Weyl semimetal trigonal PtBi has recently been identified as a promising candidate material for intrinsic topological surface superconductivity emerging from the Fermi arc…
Topological nodal -wave superconductivity in PtBi
Susmita Changdar, Oleksandr Suvorov, Andrii Kuibarov +11
Most superconducting materials are well-understood and conventional in the sense that the pairs of electrons that cause the superconductivity by their condensation have the highest…
Fermi surface evolution in Weyl semimetal t-PtBi probed by transverse transport properties
F. Caglieris, M. Ceccardi, D. Efremov +8
The combination of non-trivial topology and superconductivity opens to novel quantum devices. The discovery of intrinsic materials where such properties appear together represents…
Chiral anomaly in the Weyl semimetal TaRhTe
M. Behnami, D. V. Efremov, S. Aswartham +10
TaRhTe is a type-IIWeyl semimetal, exhibiting fourWeyl points in proximity to the Fermi level. In this article, we report our results of a systematic study of longitudinal magn…
Large Nernst effect in Te-based van der Waals materials
M. Behnami, M. Gillig, A. G. Moghaddam +14
Layered van der Waals tellurides reveal topologically non-trivial properties that give rise to unconventional magneto-transport phenomena. Additionally, their semimetallic characte…
Dissipationless transport signature of topological nodal lines
Arthur Veyrat, Klaus Koepernik, Louis Veyrat +12
Topological materials, such as topological insulators or semimetals, usually not only reveal the nontrivial properties of their electronic wavefunctions through the appearance of s…
Room temperature Planar Hall effect in nanostructures of trigonal-PtBi2
Arthur Veyrat, Klaus Koepernik, Louis Veyrat +13
Trigonal-PtBi2 has recently garnered significant interest as it exhibits unique superconducting topological surface states due to electron pairing on Fermi arcs connecting bulk Wey…
Fermi arcs dominating the electronic surface properties of trigonal PtBi
Sven Hoffmann, Sebastian Schimmel, Riccardo Vocaturo +10
Materials combining topologically non-trivial behavior and superconductivity offer a potential route for quantum computation. However, the set of available materials intrinsically…
Electron dynamics in a three-dimensional Brillouin zone analysed by machine learning
Paulina Majchrzak, Charlotte Sanders, Yu Zhang +10
The electron dynamics in the unoccupied states of the Weyl semimetal PtBi is studied by time- and angle-resolved photoemission spectroscopy (TR-ARPES). The measurement's result…
Ultrafast carrier dynamics throughout the three-dimensional Brillouin zone of the Weyl semimetal PtBi
Paulina Majchrzak, Charlotte Sanders, Yu Zhang +10
Using time- and angle-resolved photoemission spectroscopy, we examine the unoccupied electronic structure and electron dynamics of the type-I Weyl semimetal PtBi. Using the abi…
Electron-phonon interaction, magnetic phase transition, charge density waves and resistive switching in VS2 and VSe2 revealed by Yanson point contact spectroscopy
D. L. Bashlakov, O. E. Kvitnitskaya, S. Aswartham +5
VS2 and VSe2 have attracted particular attention among the transition metals dichalcogenides because of their promising physical properties concerning magnetic ordering, charge den…
Superconducting Arcs
Andrii Kuibarov, Oleksandr Suvorov, Riccardo Vocaturo +12
An essential ingredient for the production of Majorana fermions that can be used for quantum computing is the presence of topological superconductivity. As bulk topological superco…
Surface superconductivity in the topological Weyl semimetal t-PtBi
Sebastian Schimmel, Yanina Fasano, Sven Hoffmann +10
The advancement of quantum computation is eager on generating fault tolerant qubits, and topological superconductivity is a very promising concept for reaching this goal. Early exp…
Electron-phonon interaction and point contact enhanced superconductivity in trigonal PtBi2
D. L. Bashlakov, O. E. Kvitnitskaya, G. Shipunov +5
PtBi2 is a Weyl semimetal, which demonstrates superconductivity with low critical temperature Tc ~ 0.6 K in the bulk. Here, we report our study of electron-phonon interaction (EPI)…
Layered van der Waals topological metals of TaTMTe4 (TM = Ir, Rh, Ru) family
G. Shipunov, B. R. Piening, C. Wuttke +12
Layered van~der~Waals materials of the family TaTMTe (TM=Ir, Rh, Ru) are showing very interesting electronic properties. Here we report the synthesis, crystal growth and struct…
Berezinskii-Kosterlitz-Thouless transition in the type-I Weyl semimetal PtBi
Arthur Veyrat, Valentin Labracherie, Dima L. Bashlakov +12
Symmetry breaking in topological matter has become in recent years a key concept in condensed matter physics to unveil novel electronic states. In this work, we predict that broken…
Experimental Evidence of Stable 2 Phase on the Surface of Layered 1-TaTe
Indrani Kar, Kapildeb Dolui, Luminita Harnagea +6
We report on the low-energy electronic structure of Tantalum ditelluride (1-TaTe), one of the charge density wave (CDW) materials from the group V transition metal dichalco…
Anomalous band renormalization due to high energy in the colossal thermoelectric material KRhO
Susmita Changdar, G. Shipunov, N. B. Joseph +6
We report on low-energy electronic structure and electronic correlations of KRhO, studied using high-resolution angle-resolved photoemission spectroscopy (ARPES) techn…
Polymorphic PtBi2: Growth, structure and superconducting properties
G. Shipunov, I. Kovalchuk, B. R. Piening +13
PtBi is a polymorphic system with interesting electronic properties. Here we report optimized crystal growth and structural characterization of pyrite-type and trigonal modific…
Disorder-induced coupling of Weyl nodes in WTe
Steffen Sykora, Johannes Schoop, Lukas Graf +7
The finite coupling between Weyl nodes due to residual disorder is investigated by magnetotransport studies in WTe. The anisotropic scattering of quasiparticles is evidenced fr…
Electronic Structure Studies of FeSi: A Chiral Topological System
Susmita Changdar, S. Aswartham, Anumita Bose +7
Most recent observation of topological Fermi arcs on the surface of manyfold degenerate B20 systems, CoSi and RhSi, have attracted enormous research interests. Although an another…