225 citations · 1.1k across the 18 of their papers we have counts for
11 papers · 1 filter
Buildup and dephasing of Floquet-Bloch bands on subcycle time scales
S. Ito, M. Schüler, M. Meierhofer +10
Strong light fields have created spectacular opportunities to tailor novel functionalities of solids. Floquet-Bloch states can form under periodic driving of electrons and enable e…
Ultrafast electron dynamics in a topological surface state observed in two-dimensional momentum space
J. Reimann, K. Sumida, M. Kakoki +5
We study ultrafast population dynamics in the topological surface state of SbTe in two-dimensional momentum space with time- and angle-resolved two-photon photoemission. Li…
Electrically Controlled Spin Injection from Giant Rashba Spin-Orbit Conductor BiTeBr
Zoltán Kovács-Krausz, Anamul Md Hoque, Péter Makk +12
Ferromagnetic materials are the widely used source of spin-polarized electrons in spintronic devices, which are controlled by external magnetic fields or spin-transfer torque metho…
In situ tuning of symmetry-breaking induced non-reciprocity in giant-Rashba semiconductor BiTeBr
Mátyás Kocsis, Oleksandr Zheliuk, Péter Makk +8
Non-reciprocal transport, where the left to right flowing current differs from the right to left flowing one, is an unexpected phenomenon in bulk crystals. BiTeBr is a non-centrosy…
Probing topological insulators surface states via plasma-wave Terahertz detection
Leonardo Viti, Dominique Coquillat, Antonio Politano +7
Topological insulators (TIs) represent a novel quantum state of matter, characterized by edge or surface-states, showing up on the topological character of the bulk wave functions.…
Systematics of electronic and magnetic properties in the transition metal doped SbTe quantum anomalous Hall platform
M F. Islam, C. M. Canali, A. Pertsova +19
The quantum anomalous Hall effect (QAHE) has recently been reported to emerge in magnetically-doped topological insulators. Although its general phenomenology is well established,…
Conductance oscillations and zero-bias anomaly in a single superconducting junction to a three-dimensional topological insulator
O. O. Shvetsov, V. A. Kostarev, A. Kononov +4
We experimentally investigate Andreev transport through a single junction between an s-wave indium superconductor and a thick film of a three-dimensional topological ins…
Shubnikov-de Haas oscillations in p and n-type topological insulator (BiSb)Te
Ryota Akiyama, Kazuki Sumida, Satoru Ichinokura +4
We show Shubnikov-de Haas oscillations in topological insulator (BiSb)Te films whose carrier type is p-type (x = 0.29, 0.34) and n-type (x = 0.42). The ph…
Signatures of Dirac fermion-mediated magnetic order
Paolo Sessi, Felix Reis, Thomas Bathon +3
The spin-momentum locking of topological states offers an ideal platform to explore novel magneto-electric effects. These intimately depend on the ability to manipulate the spin te…
Unoccupied Topological States on Bismuth Chalcogenides
D. Niesner, Th. Fauster, S. V. Eremeev +9
The unoccupied part of the band structure of topological insulators BiTeSe () is studied by angle-resolved two-photon photoemission and density functiona…
Topological Surface States with Persistent High Spin Polarization across Dirac Point in BiTeSe and BiSeTe
K. Miyamoto, A. Kimura, T. Okuda +9
Helical spin textures with the marked spin polarizations of topological surface states have been firstly unveiled by the state-of-the-art spin- and angle-resolved photoemission spe…