3 papers
cond-mat.str-el2026
Unified Terahertz Framework for Magnetic and Lattice Responses Reveals an Elusive Ordering Transition in GdRuO
Nicolas M. Kawahala, Rafael L. Sabainsk, Esteban Marulanda +2
Magnetic order in materials combining localized rare-earth moments with itinerant transition-metal sublattices generates internal fields whose lattice imprint is rarely accessed di…
cond-mat.str-el2026
Colossal Terahertz Magnetoresistance from Magnetic Polarons in EuZnP
E. Marulanda, M. Dutra, N. M. Kawahala +5
Magnetic polarons can generate colossal magnetoresistance in magnetic semiconductors, yet their terahertz electrodynamics remain largely unexplored. Here we report magneto-terahert…
physics.optics2025
Windowing in terahertz time-domain spectroscopy: resolving resonances in thin-film samples
Esteban Marulanda, Fernanda L. Costa, Nicolas M. Kawahala +1
Terahertz time-domain spectroscopy (THz-TDS) has become a powerful tool for investigating the optical properties of thin films, offering direct access to the complex permittivity i…