165 citations · 749 across the 19 of their papers we have counts for
19 papers
Photoelectron diffraction of twisted bilayer graphene
S. Tricot, H. Ikeda, H. -C. Tchouekem +7
Photoelectron diffraction (PED) is a powerful spectroscopic technique that combines elemental resolution with a high sensitivity to the local atomic arrangement at crystal surfaces…
Orbital-selective Band Hybridisation at the Charge Density Wave Transition in Monolayer TiTe
T. Antonelli, W. Rahim, M. D. Watson +12
An anomalous charge density wave (CDW) phase emerges in monolayer 1T-TiTe which is absent for the bulk compound, and whose origin is still poorly understood. Here,…
Universal Fabrication of Two-Dimensional Electron Systems in Functional Oxides
Tobias Chris Rödel, Franck Fortuna, Shamashis Sengupta +9
Two-dimensional electron systems (2DESs) in functional oxides are promising for applications, but their fabrication and use, essentially limited to SrTiO-based heterostructures…
Weyl-like points from band inversions of spin-polarised surface states in NbGeSb
I. Marković, C. A. Hooley, O. J. Clark +16
Band inversions are key to stabilising a variety of novel electronic states in solids, from topological surface states in inverted bulk band gaps of topological insulators to the f…
Electronic reconstruction forming a -symmetric Dirac semimetal in CaRuO
M. Horio, Q. Wang, V. Granata +19
Electronic band structures in solids stem from a periodic potential reflecting the structure of either the crystal lattice or an electronic order. In the stoichiometric ruthenate C…
Fermi level tuning of one-dimensional giant Rashba system on a semiconductor substrate: Bi/GaSb(110)-(2x1)
Takuto Nakamura, Yoshiyuki Ohtsubo, Naoki Tokumasu +10
We fabricated spin-polarized surface electronic states with tunable Fermi level from semiconductor to low-dimensional metal in the Bi/GaSb(110)-(21) surface using angle-res…
ARPES study of orbital characters, symmetry breakings and pseudogaps in doped and pure Sr2IrO4
Alex Louat, Benjamin Lenz, Silke Biermann +6
Sr2IrO4 is characterized by a large spin-orbit coupling, which gives rise to bands with strongly entangled spin and orbital characters, called J=1/2 and J=3/2. We use light-polariz…
Temperature-driven modification of surface electronic structure on bismuth, a topological border material
Y. Ohtsubo, Y. Yamashita, J. Kishi +7
Single crystalline bismuth (Bi) is known to have a peculiar electronic structure which is very close to the topological phase transition. The modification of the surface states of…
Evidence of Direct Electronic Band Gap in two-dimensional van der Waals Indium Selenide crystals
Hugo Henck, Debora Pierucci, Jihene Zribi +12
Metal mono-chalcogenide compounds offer a large variety of electronic properties depending on chemical composition, number of layers and stacking-order. Among them, the InSe has at…
High-density two-dimensional electron system induced by oxygen vacancies in ZnO
T. C. Rödel, J. Dai, F. Fortuna +10
We realize a two-dimensional electron system (2DES) in ZnO by simply depositing pure aluminum on its surface in ultra-high vacuum, and characterize its electronic structure using a…
Co/Ni multilayers for spintronics: high spin-polarization and tunable magnetic anisotropy
S. Andrieu, T. Hauet, M. Gottwald +13
In this paper we analyze in details the electronic properties of (Co/Ni) multilayers, a model system for spintronics devices. We use magneto-optical Kerr (MOKE), spin-polarized pho…
Two-dimensional electron system at the magnetically tunable EuO/SrTiO interface
Patrick Lömker, Tobias C. Rödel, Timm Gerber +6
We create a two-dimensional electron system (2DES) at the interface between EuO, a ferromagnetic insulator, and SrTiO3, a transparent non-magnetic insulator considered the bedrock…
Two-dimensional electron systems in ATiO3 perovskites (A = Ca, Ba, Sr): control of orbital hybridization and order
Tobias C. Rödel, Manali Vivek, Franck Fortuna +6
We report the existence of a two-dimensional electron system (2DES) at the (001) surface of CaTiO3. Using angle-resolved photoemission spectroscopy, we find a hybridization between…
Measuring Chern numbers above the Fermi level in the Type II Weyl semimetal MoWTe
Ilya Belopolski, Su-Yang Xu, Yukiaki Ishida +30
It has recently been proposed that electronic band structures in crystals give rise to a previously overlooked type of Weyl fermion, which violates Lorentz invariance and, conseque…
ARPES view of orbitally resolved quasiparticle lifetimes in iron pnictides
Veronique Brouet, David LeBoeuf, Ping-Hui Lin +6
We study with ARPES the renormalization and quasiparticle lifetimes of the and / orbitals in two iron pnictides, LiFeAs and Ba(FeCo)A…
Deviation from Fermi-liquid behavior in two-dimensional surface states of Au-induced nanowires on Ge(001) by correlation and localization
K. Yaji, R. Yukawa, S. Kim +7
The electronic states of Au-induced atomic nanowires on Ge(001) (Au/Ge(001) NWs) have been investigated by angle-resolved photoelectron spectroscopy with linearly polarized light.…
Engineering two-dimensional electron gases at the (001) and (101) surfaces of TiO2 anatase using light
T. C. Rödel, F. Fortuna, F. Bertran +4
We report the existence of metallic two-dimensional electron gases (2DEGs) at the (001) and (101) surfaces of bulk-insulating TiO2 anatase due to local chemical doping by oxygen va…
Measuring Fermi velocities with ARPES in narrow band systems. The case of layered cobaltates
V. Brouet, A. Nicolaou, M. Zacchigna +3
ARPES is a priori a technique of choice to measure the Fermi velocities vF in metals. In correlated systems, it is interesting to compare this experimental value to that obtained i…
Direct observation of a highly spin-polarized organic spinterface at room temperature
F. Djeghloul, F. Ibrahim, M. Cantoni +23
The design of large-scale electronic circuits that are entirely spintronics-driven requires a current source that is highly spin-polarised at and beyond room temperature, cheap to…