Electrical and Magnetic Properties for Bulk FeSe and FeSe0.5Te0.5 Superconductors

Anharmonic phonon interactions and the Kondo effect in a FeSe/Sb2Te3/FeSe heterostructure: a proximity effect between ferromagnetic chalcogenide and di-chalcogenide

“…Furthermore, due to the observed anomaly in magnetization of the 75.3 nm film, we have carried out a detailed Raman study to elaborate the effect of local charge ordering at the proximity of the interface for this particular heterostructure. Here, we would like to mention that the tetragonal FeSe is ferromagnetic 30,31 above room temperature whereas Sb 2 Te 3 is nonmagnetic. 26,27,32,33 However, the abovementioned local spin ordering may appear owing to lattice distortion and phonon vibrations at high temperatures.…”