Publications (11)
Ultrafast Optical Control of the Electronic Properties of
G. Manzoni, A. Sterzi, A. Crepaldi +8
We report on the temperature dependence of the electronic properties, studied at equilibrium and out of equilibrium, by means of time and angle resolved photoelectron spec…
Light-induced renormalization of the Dirac quasiparticles in the nodal-line semimetal ZrSiSe
G. Gatti, A. Crepaldi, M. Puppin +16
In nodal-line semimetals linearly dispersing states form Dirac loops in the reciprocal space, with high degree of electron-hole symmetry and almost-vanishing density of states near…
The momentum and photon energy dependence of the circular dichroic photoemission in the bulk Rashba semiconductors BiTeX (X = I, Br, Cl)
A. Crepaldi, F. Cilento, M. Zacchigna +14
Bulk Rashba systems BiTeX (X = I, Br, Cl) are emerging as important candidates for developing spintronics devices, because of the coexistence of spin-split bulk and surface states,…
Light-induced renormalization of the band structure of chiral tellurium
G. Gatti, N. Tancogne-Dejean, H. Hübener +11
Chirality in tellurium derives from a Peierls distortion driven by strong electron-phonon coupling, making this material a unique candidate for observing a light-induced topologica…
Momentum resolved spin dynamics of bulk and surface excited states in the topological insulator
C. Cacho, A. Crepaldi, M. Battiato +16
The prospective of optically inducing a spin polarized current for spintronic devices has generated a vast interest in the out-of-equilibrium electronic and spin structure of topol…
Giant ambipolar Rashba effect in a semiconductor: BiTeI
A. Crepaldi, L. Moreschini, G. Autès +11
We observe a giant spin-orbit splitting in bulk and surface states of the non-centrosymmetric semiconductor BiTeI. We show that the Fermi level can be placed in the valence or in t…