3 papers
cond-mat.mtrl-sci2026
Fluctuation-Driven Enhancement of Spin-Orbit Torque near the Curie Temperature of Ultrathin Ferromagnets
Mateusz Szurek, Sergei Ivanov, Sergei Urazhdin
We investigate how magnetic fluctuations influence spin-orbit torque in ultrathin-film magnetic heterostructures whose Curie temperature is suppressed by confinement. Above $…
cond-mat.mes-hall2025
The role of electron interactions in a failed insulator revealed by shot noise
Mateusz Szurek, Hanqiao Cheng, Zilu Pang +2
In materials known as failed insulators, electrical resistivity increases as temperature decreases, yet does not diverge - a phenomenon inconsistent with single-particle theories.…
cond-mat.str-el2025
Anomalous shot noise in a bad metal beta-tantalum
M. Szurek, H. Cheng, Z. Pang +3
We investigate the electronic shot noise produced by nanowires of -Ta, an archetypal ``bad" metal with resistivity near the Ioffe-Regel localization limit. The Fano factor char…