Asymmetric double peaks in point-contact spectra of Sn0.15NbSe1.75 are attributed to Fano interference and hybridization between topological surface flat bands and bulk bands, with anomalous low-temperature upper critical field behavior.
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Hybridization between surface flat bands and bulk bands in the topological nodal-line semimetal Sn$_{0.15}$NbSe$_{1.75}$ probed via soft-point-contact spectroscopy
Asymmetric double peaks in point-contact spectra of Sn0.15NbSe1.75 are attributed to Fano interference and hybridization between topological surface flat bands and bulk bands, with anomalous low-temperature upper critical field behavior.