Regensburg 2016 – scientific programme

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TT: Fachverband Tiefe Temperaturen

TT 19: Superconductivity: Poster Session

TT 19.20: Poster

Monday, March 7, 2016, 15:00–18:00, Poster D

Scanning tunneling microscopy on bulk FeSe — •Jonas Dressner, Jasmin Jandke, Thomas Wolf, and Wulf Wulfhekel — Karlsruhe Institut of Technology, Germany

We used high-resolution scanning tunneling spectroscopy to study bulk FeSe at temperatures down to 30 mK. At this temperature, highly resolved spectra of the quasiparticle density of states could be measured showing multiple superconducting gaps. This is in agreement with the multiband character of this system. Furthermore, features of bosonic excitations are observed in the measured quasiparticle density of states and will be discussed.