179 citations · 869 across the 14 of their papers we have counts for
9 papers · 1 filter
Spin-resolved electronic response to the phase transition in MoTe
Andrew P. Weber, Philipp Rüßmann, Nan Xu +10
The semimetal MoTe is studied by spin- and angle- resolved photoemission spectroscopy to probe the detailed electronic structure underlying its broad range of response behavior…
Enhanced ultrafast relaxation rate in the Weyl semimetal phase of measured by time-and angle-resolved photoelectron spectroscopy
A. Crepaldi, G. Autès, G. Gatti +18
has recently been shown to realize in its low-temperature phase the type-II Weyl semimetal (WSM). We investigated by time- and angle- resolved photoelectron spect…
BiTeCl and BiTeBr: a comparative high-pressure optical study
I. Crassee, F. Borondics, M. K. Tran +8
We here report a detailed high-pressure infrared transmission study of BiTeCl and BiTeBr. We follow the evolution of two band transitions: the optical excitation between two Ra…
Evidence for a Strong Topological Insulator Phase in
G. Manzoni, L. Gragnaniello, G. Autès +16
The complex electronic properties of have recently stimulated in-depth investigations that assigned this material to either a topological insulator or a 3D Dirac…
Discovery of Weyl semimetal state violating Lorentz invariance in MoTe2
N. Xu, Z. J. Wang, A. P. Weber +16
A new type of Weyl semimetal state, in which the energy values of Weyl nodes are not the local extrema, has been theoretically proposed recently, namely type II Weyl semimetal. Dis…
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…
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,…
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…