2023/04/16 by Anup Pradhan Sakhya, Sabin Regmi, Sakhya, Anup Pradhan +15
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Iron-based superconductors research #Materials Science (cond-mat.mtrl-sci) #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Rare-earth and actinide compounds #Topological Materials and Phenomena
paper · pdf · doi:10.48550/arxiv.2304.07871
openalex publication_date 2023/04/16 · openalex created_date 2023/04/21 · openalex updated_date 2026/08/01
We performed a detailed study of the intrinsic electronic structure of YRu2Si2 employing angleresolved photoemission spectroscopy (ARPES) and density-functional theory (DFT) based firstprinciples calculations. Electrical and magnetic measurements were conducted on well-oriented highquality single crystals. Bulk physical measurements indicate that the compound exhibits slightly enhanced Pauli paramagnetic behavior, accompanied by electrical transport properties reminiscent of metals. Our ARPES data reveal four fold symmetric Fermi surface with weakly-dispersing bands around the N point originating from Ru d orbitals. We observed the anisotropic characteristics of the band near the N point, showing weak dispersion in the XNX direction and minimal dispersion along the NGN direction. The electronic band structure near the Fermi level is primarily governed by the Ru d orbital, with minor contributions from the Y d and Si p orbitals. Polarization-dependent ARPES results indicate the multi-band and multi-orbital band-character of YRu2Si2. Due to the negligible correlation effect, the observed ARPES data is found to be in good agreement with the DFT results.