The advent of pump-probe spectroscopy techniques paved the way to the exploration of
ultrafast dynamics of electrons and phonons in crystalline solids. Following photo-absorption …

We report on the nonequilibrium dynamics of the electronic structure of the layered
semiconductor Ta 2 NiSe 5 investigated by time-and angle-resolved photoelectron …

Carrier interactions in 2D nanostructures are of central importance not only in condensed‐
matter physics but also for a wide range of optoelectronic and photonic applications. Here …

The excitation of quasi-particles near the extrema of the electronic band structure is a
gateway to electronic phase transitions in condensed matter. In a many-body system, quasi …

We report on a simple surfactant/template free chemical route for the synthesis of semi-
polycrystalline polyaniline-graphite (SPani-graphite) composite and its application as an …

Charge transfer in transduction of light to electrical or chemical energy at heterojunctions of
metals with semiconductors or semimetals is believed to occur by photogenerated hot …

We demonstrate ultrafast core-electron energy-loss spectroscopy in four-dimensional
electron microscopy as an element-specific probe of nanoscale dynamics. We apply it to the …

Electronic heating of cold crystal lattices in nonlinear multiphoton excitation can transiently
alter their physical and chemical properties. In metals where free electron densities are high …

The light-mediated interaction of fermionic and bosonic excitations governs the
optoelectronic properties of condensed matter systems. In photoexcited semiconductors, the …

Ultrafast electron–phonon relaxation dynamics in graphene hides many distinct
phenomena, such as hot phonon generation, dynamical Kohn anomalies, and phonon …