3 papers
cond-mat.supr-con2026
Acoustic Phonon Dynamics in Co-Doped BaFeAs Thin Film
Alexander Bartenev, Roman Kolodka, Larry Theran +5
Pump-probe reflectivity reveals coherent acoustic oscillations at 33 and 8.2 GHz in a Ba(FeCo)As thin film. The acoustic response was analyzed using a mod…
cond-mat.supr-con2026
Fit-Free Optical Determination of Electronic Thermalization Time in Nematic Iron-Based Superconductors
Alexander Bartenev, Roman Kolodka, Ki-Tae Eom +6
We present a nematic response function model (NRFM) for fit-free direct extraction of the characteristic time of ultrafast electronic thermalization in iron-based superconductors,…
physics.optics2025
Features of Surface Structuring of Direct and Indirect Band Gap Semiconductors by Femtosecond Laser
N. I. Berezovska, I. M. Dmitruk, Ye. S. Hrabovskyi +4
The impact of femtosecond (fs) laser radiation on semiconductors with direct (ZnSe, GaAs, CdZnTe) band gap, with the structurally induced direct-to-indirect band gap transition (Pb…