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Coupling to real and virtual phonons in tunneling spectroscopy of superconductors

Jandke, Jasmin; Hlobil, Patrik; Schackert, Michael; Wulfhekel, Wulf; Schmalian, Joerg

Abstract (englisch):
Fine structures in the tunneling spectra of superconductors have been widely used to identify fingerprints of the interaction responsible for Cooper pairing. Here, we show that for scanning tunneling microscopy (STM) of Pb, the inclusion of inelastic tunneling processes is essential for the proper interpretation of these fine structures. For STM the usual McMillan inversion algorithm of tunneling spectra must therefore be modified to include inelastic tunneling events, an insight that is crucial for the identification of the pairing glue in conventional and unconventional superconductors alike.

Zugehörige Institution(en) am KIT Institut für Festkörperphysik (IFP)
Institut für Theorie der Kondensierten Materie (TKM)
Physikalisches Institut (PHI)
Publikationstyp Zeitschriftenaufsatz
Jahr 2016
Sprache Englisch
Identifikator ISSN: 0163-1829, 0556-2805, 1094-1622, 1095-3795, 1098-0121, 1550-235X, 2469-9950, 2469-9969
KITopen ID: 1000053594
HGF-Programm 43.21.01; LK 01
Erschienen in Physical review / B
Band 93
Heft 6
Seiten 060505
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