Unit
Group SCI SB HD
GroupRelated publications (122)
Spin polarization and attosecond time delay in photoemission from solids
In the photoemission process electrons are emitted from a solid upon excitation with UV light. From the measurement of their energy and momentum, angle-resolved photoemission spectroscopy (ARPES) allows to reconstruct the electronic properties of the solid ...
EPFL2018Scaling of the superconducting gap with orbital character in FeSe
We use high-resolution angle-resolved photoemission spectroscopy to map the three-dimensional momentum dependence of the superconducting gap in FeSe. We find that on both the hole and electron Fermi surfaces, the magnitude of the gap follows the distributi ...
2018Determination of the time scale of photoemission from the measurement of spin polarization
The Eisenbud-Wigner-Smith (EWS) time delay of photoemission depends on the phase term of the matrix element describing the transition. Because of an interference process between partial channels, the photoelectrons acquire a spin polarization which is also ...
2018Spin-resolved band structure of a densely packed Pb monolayer on Si(111)
Jan Hugo Dil, Stefan Peter Muff, Mauro Fanciulli
Monolayer structures of Pb on Si(111) attracted recently considerable interest as superconductivity was found in these truly two-dimensional (2D) structures. In this study, we analyzed the electronic surface band structure of the so-called striped incommen ...
Amer Physical Soc2017Spectroscopic Studies of the Electronic Structure in Layered Cuprates and Ruthenates
In materials where electrons interact strongly, a number of exotic and exciting phenomena arise. The mechanisms at the base of many of these phenomena remain debated, as strongly correlated electron physics represents one of the biggest challenges for mode ...
EPFL2017Spin Polarization and Attosecond Time Delay in Photoemission from Spin Degenerate States of Solids
Jan Hugo Dil, Stefan Peter Muff, Mauro Fanciulli
After photon absorption, electrons from a dispersive band of a solid require a finite time in the photoemission process before being photoemitted as free particles, in line with recent attosecond-resolved photoemission experiments. According to the Eisenbu ...
American Physical Society2017Electronic Transport in 2D Materials with Strong Spin-orbit Coupling
The thesis describes the computational study of structural, electonic and transport properties of monolayer transition metal dichalcogenides (TMDs) in the stable 2H and the metastable 1T' phases. Several aspects have been covered by the study including the ...
EPFL2017Bulk diffusive relaxation mechanisms in optically excited topological insulators
Arnaud Magrez, Helmuth Berger, Philippe Bugnon, Alberto Crepaldi
The possibility to inject spin currents in topological insulators (TIs) by ultrashort optical pulses has stimulated intense studies of their out-of-equilibrium electronic properties. However, a comprehensive description of the electronic relaxation dynamic ...
Amer Physical Soc2017Manipulation of the Two-Dimensional States at Titanates Surfaces studied by ARPES
The transition metal oxides are known for their versatile physical properties and are therefore an active field of research towards possible new functionalities and applications. This thesis focuses on the subgroup of titanates with perovskite structure th ...
EPFL2017Evolution of the Fermi surface of BiTeCl with pressure
We report measurements of Shubnikov-de Haas oscillations in the giant Rashba semiconductor BiTeCl under applied pressures up to similar to 2.5 GPa. We observe two distinct oscillation frequencies, corresponding to the Rashba-split inner and outer Fermi sur ...
Iop Publishing Ltd2017