135 citations · 415 across the 18 of their papers we have counts for
6 papers · 1 filter
Revealing the nature of the charge density wave order of ErTe via Raman scattering under anisotropic strain
Theotime Freitas, Mattia Udina, Alexandr Alekhin +7
The nature of the charge density wave (CDW) order of the rare-earth tritelluride ErTe3 is investigated by Raman scattering under anisotropic strain. The CDW state of ErTe3 is uncon…
Antisymmetric Raman response
Mattia Udina, Indranil Paul
We develop the theory of antisymmetric Raman response, defined as the difference between the Raman signals of two scattering geometries related by an exchange of mutually perpendic…
Terahertz electric-field driven dynamical multiferroicity in SrTiO
M. Basini, M. Pancaldi, B. Wehinger +5
The emergence of collective order in matter is among the most fundamental and intriguing phenomena in physics. In recent years, the ultrafast dynamical control and creation of nove…
Terahertz displacive excitation of a coherent Raman-active phonon in VO
Flavio Giorgianni, Mattia Udina, Tommaso Cea +7
Nonlinear processes involving frequency-mixing of light fields set the basis for ultrafast coherent spectroscopy of collective modes in solids. In certain semimetals and semiconduc…
Raman response in the nematic phase of FeSe
Mattia Udina, Marco Grilli, Lara Benfatto +1
Raman experiments on bulk FeSe revealed that the low-frequency part of Raman response , which probes nematic fluctuations, rapidly decreases below the nematic…
Theory of coherent oscillations detection in THz pump-probe spectroscopy: from phonons to electronic collective modes
Mattia Udina, Tommaso Cea, Lara Benfatto
Time-resolved spectroscopies using intense THz pulses appear as a promising tool to address collective electronic excitations in condensed matter. In particular recent experiments…