200 citations · 890 across the 18 of their papers we have counts for
18 papers
Reconstructing Critical Current Density in Josephson Junctions with Phase Non-linearity
A. Kudriashov, R. A. Hovhannisyan, X. Zhou +4
In this Letter, we show that the standard Dynes-Fulton analysis, commonly used to reconstruct the critical current density from interference patterns, breaks down in Josephson junc…
Growth of bulk crystals of magnetic topological insulators under peritectic conditions
Anton I. Sergeev, Alexander S. Frolov, Nadezhda V. Vladimirova +9
Magnetic topological materials (MTIs) including MnBiTe are of scientific interest due to the possibility to reveal the interplay between topological and magnetic orders. Fo…
Magnetic Dirac semimetal state of (Mn,Ge)BiTe
Alexander S. Frolov, Dmitry Yu. Usachov, Artem V. Tarasov +13
For quantum electronics, the possibility to finely tune the properties of magnetic topological insulators (TIs) is a key issue. We studied solid solutions between two isostructural…
Impact of ultrafast transport on the high-energy states of a photoexcited topological insulator
F. Freyse, M. Battiato, L. V. Yashina +1
Ultrafast dynamics in three-dimensional topological insulators (TIs) opens new routes for increasing the speed of information transport up to frequencies thousand times faster than…
Anomalous behavior of the electronic structure of (BiIn)Se across the quantum-phase transition from topological to trivial insulator
J. Sánchez-Barriga, I. Aguilera, L. V. Yashina +9
Using spin- and angle-resolved spectroscopy and relativistic many-body calculations, we investigate the evolution of the electronic structure of (BiIn)Se bulk s…
Quasi-two-dimensional thermoelectricity in SnSe
V. Tayari, B. V. Senkovskiy, D. Rybkovskiy +14
Stannous selenide is a layered semiconductor that is a polar analogue of black phosphorus, and of great interest as a thermoelectric material. Unusually, hole doped SnSe supports a…
High-temperature quantum oscillations of the Hall resistance in bulk BiSe
Marco Busch, Olivio Chiatti, Sergio Pezzini +5
Helically spin-polarized Dirac fermions (HSDF) in protected topological surface states (TSS) are of high interest as a new state of quantum matter. In three-dimensional (3D) materi…
Laser-induced persistent photovoltage on the surface of a ternary topological insulator at room temperature
J. Sánchez-Barriga, M. Battiato, E. Golias +4
Using time- and angle-resolved photoemission, we investigate the ultrafast response of excited electrons in the ternary topological insulator (BiSb)Te to fs-i…
Sub-picosecond spin dynamics of excited states in the topological insulator BiTe
J. Sánchez-Barriga, M. Battiato, M. Krivenkov +9
Using time-, spin- and angle-resolved photoemission, we investigate the ultrafast spin dynamics of hot electrons on the surface of the topological insulator BiTe following…
Nonmagnetic band gap at the Dirac point of the magnetic topological insulator (BiMnSe
J. Sánchez-Barriga, A. Varykhalov, G. Springholz +17
Magnetic doping is expected to open a band gap at the Dirac point of topological insulators by breaking time-reversal symmetry and to enable novel topological phases. Epitaxial (Bi…
2D layered transport properties from topological insulator BiSe single crystals and micro flakes
Olivio Chiatti, Christian Riha, Dominic Lawrenz +9
Low-field magnetotransport measurements of topological insulators such as BiSe are important for revealing the nature of topological surface states by quantum corrections t…
Ultrafast spin polarization control of Dirac fermions in topological insulators
J. Sánchez-Barriga, E. Golias, A. Varykhalov +7
Three-dimensional topological insulators (TIs) are characterized by spin-polarized Dirac-cone surface states that are protected from backscattering by time-reversal symmetry. Contr…
Anisotropic effect of warping on the lifetime broadening of topological surface states in angle-resolved photoemission from BiTe
J. Sánchez-Barriga, M. R. Scholz, E. Golias +5
We analyze the strong hexagonal warping of the Dirac cone of BiTe by angle-resolved photoemission. Along , the dispersion deviates from a line…
Surface states in a 3D topological insulator: The role of hexagonal warping and curvature
E. V. Repin, V. S. Stolyarov, T. Cren +5
We explore a combined effect of hexagonal warping and of finite effective mass on both the tunneling density of electronic states (TDOS) and structure of Landau levels (LLs) of 3D…
Photoemission of BiSe with Circularly Polarized Light: Probe of Spin Polarization or Means for Spin Manipulation?
J. Sánchez-Barriga, A. Varykhalov, J. Braun +12
Topological insulators are characterized by Dirac cone surface states with electron spins aligned in the surface plane and perpendicular to their momenta. Recent theoretical and ex…
Reversal of the circular dichroism in the angle-resolved photoemission from Bi2Te3
M. R. Scholz, J. Sánchez-Barriga, J. Braun +11
The helical Dirac fermions at the surface of topological insulators show a strong circular dichroism which has been explained as being due to either the initial-state spin angular…
Tolerance of topological surface states towards magnetic moments: Fe on Bi2Te3 and Bi2Se3
M. R. Scholz, J. Sánchez-Barriga, D. Marchenko +4
Topological insulators(1-8) are a novel form of matter which features metallic surface states with quasirelativistic dispersion similar to graphene(9). Unlike graphene, the locking…
High spin polarization and circular dichroism of topological surface states on Bi2Te3
M. R. Scholz, J. Sánchez-Barriga, D. Marchenko +4
Topological insulators have been successfully identified by spin-resolved photoemission but the spin polarization remained low (~20%). We show for Bi2Te3 that the in-gap surface st…