743 citations · 2.3k across the 25 of their papers we have counts for
25 papers
Topological flat bands emerging at the inversion of stacking order in rhombohedral graphite
R. Weht, A. A. Aligia, M. Nunez-Regueiro
Motivated by the indications of high-Tc superconductivity in natural graphite enriched in the rhombohedral phase, we study the band structure of several stacking configurations tha…
Quantum interference effects of out-of-plane confinement on two-dimensional electron systems in oxides
A. F. Santander-Syro, J. Dai, T. C. Rödel +4
It was recently discovered that a conductive, metallic state is formed on the surface of some insulating oxides. Firstly observed on SrTiO(001), it was then found in other comp…
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…
First-Order Insulator-to-Metal Mott Transition in the Paramagnetic 3D System GaTa4Se8
A. Camjayi, C. Acha, R. Weht +5
The nature of the Mott transition in the absence of any symmetry braking remains a matter of debate. We study the correlation-driven insulator-to-metal transition in the prototypic…
Localised Wannier orbital basis for the Mott insulators GaV4S8 and GaTa4Se8
A. Camjayi, R. Weht, M. J. Rozenberg
We study the electronic properties of GaV4S8 (GVS) and GaTaSe8 (GTS), two distant members within the large family of chalcogenides AM4X8, with A={Ga, Ge}, M={V, Nb, Ta, Mo} and X={…
Direct observation of the influence of the FeAs4 tetrahedron on superconductivity and antiferromagnetic correlations in Sr2VO3FeAs
Gaston Garbarino, Ruben Weht, Amadou Sow +7
We measure the pressure dependence of the electrical resistivity and the crystal structure of iron superconductor Sr2VO3FeAs. Below ~10 GPa the structure compresses but remains und…