Signatures of Amorphous Shiba State in FeTe\(_{0.55}\)Se\(_{0.45}\)

• Published in: arXiv.org
• Main Authors: Lee, Jinwon, Lee, Sanghun, Kreisel, Andreas, Paaske, Jens, Andersen, Brian M, Bastiaans, Koen M, Chatzopoulos, Damianos, Gu, Genda, Cho, Doohee, Allan, Milan P
• Format: Paper
• Language: English
• Published: Ithaca Cornell University Library, arXiv.org 29.08.2024
• Subjects: Amorphous materials; Amorphous semiconductors; Elementary excitations; Energy gap; Excitation spectra; Fermi surfaces; Topological superconductors

The iron-based superconductor FeTe\(_{0.55}\)Se\(_{0.45}\) is a peculiar material: it hosts a surface state with a Dirac dispersion, is a putative topological superconductor hosting Majorana modes in vortices, and has an unusually low Fermi energy. The superconducting state is generally thought to b...