2024/12/03 by M. L. Amigó, Amigó, M. Lourdes, Jorge I. Facio +3 · 1 citation
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Iron-based superconductors research #Rare-earth and actinide compounds #Strongly Correlated Electrons (cond-mat.str-el) #Superconductivity (cond-mat.supr-con)
paper · pdf · doi:10.48550/arxiv.2412.02677
openalex publication_date 2024/12/03 · openalex created_date 2024/12/06 · openalex updated_date 2026/07/31
Below the structural transition occurring at Ts=90 K, FeSe exhibits positive transverse magnetoresistance when the current is applied parallel to the ab-plane. In this study, we show that, in contrast, when both the magnetic field and the current are aligned along the c-axis, the magnetotransport changes significantly. In this configuration, FeSe develops a sizable negative longitudinal magnetoresistance (∼15% at T=10 K and μ0H=16 T) in the nematic phase. We attribute this finding to the effect of the applied magnetic field on the scattering from spin fluctuations. Our observations reflect the intricate interplay between spin and orbital degrees of freedom in the nematic phase of FeSe.