The response of the worldwide scientific community to the discovery in 2008 of
superconductivity at T c= 26 K in the Fe-based compound LaFeAsO1− x F x has been very …

In the last two decades non-equilibrium spectroscopies have evolved from avant-garde
studies to crucial tools for expanding our understanding of the physics of strongly correlated …

Density wave (DW) order is believed to be correlated with superconductivity in the recently
discovered high-temperature superconductor La3Ni2O7. However, experimental …

Using time-domain terahertz spectroscopy we performed direct studies of the photoinduced
suppres<? format?> sion and recovery of the superconducting gap in a conventional BCS …

The advent of intense ultrashort optical pulses spanning a frequency range from terahertz to
the visible has opened a new era in the experimental investigation and manipulation of …

We report the time-resolved excited state ultrafast dynamics of single unit cell (1 UC) thick
FeSe films on SrTiO 3 (STO), with FeTe cap** layers. By measuring the photoexcited …

Abstract Development of ultrafast lasers and nonlinear optical techniques over the last two
decades provides tools to access real-time dynamics of low energy excitations in …

Fe-based superconductors bridge a gap between MgB 2 and the cuprate high temperature
superconductors as they exhibit multiband character and transition temperatures up to …

Ultrafast optical pump-probe spectroscopy is used to track carrier dynamics in the large-
magnetoresistance material WTe 2. Our experiments reveal a fast relaxation process …

Using femtosecond laser pulses, coherent GHz acoustic phonons are efficiently
photogenerated and photodetected in BiFeO 3 (BFO) multiferroic single crystal. Due to the …