Mann, AndreasBaldini, EdoardoTramontana, AntonioPomjakushina, EkaterinaConder, KazimierzArrell, ChristopherVan Mourik, FrankLorenzana, JoseCarbone, Fabrizio2015-09-282015-09-282015-09-28201510.1103/PhysRevB.92.035147https://infoscience.epfl.ch/handle/20.500.14299/118906WOS:000358601000002Tailoring the properties of correlated oxides is accomplished by chemical doping, pressure, temperature, or magnetic field. Photoexcitation is a valid alternative to reach out-of-equilibrium states otherwise inaccessible. Here, we quantitatively estimate the coupling between a lattice distortion and the charge-transfer excitation in La2CuO4+delta. We photoinduce a coherent La ion vibration and monitor the response of the optical constants in a broad energy range, providing quantitative information on the electron-phonon matrix element that can be compared to theoretical models. We propose the same methodology to probe electron-phonon and electron-electron interactions in other materials.Probing the electron-phonon interaction in correlated systems with coherent lattice fluctuation spectroscopytext::journal::journal article::research article