Vorträge und Posterpräsentationen (ohne Tagungsband-Eintrag):
A. Pustogow, A. Chronister, S. Brown:
"Evidence for even parity unconventional superconductivity in Sr2RuO4";
Vortrag: ÖPG SPS Annual Meeting 2021,
Innsbruck;
30.08.2021
- 03.09.2021.
Kurzfassung englisch:
The idea that unconventional superconductivity (SC) in Sr2RuO4 is a solid-state analogue to superfluid 3He-A has been recently overturned. Here we use 17O NMR spectroscopy to probe the SC state in Sr2RuO4 in the limit T → 0 down to B/Bc2 < 0.2. While the NMR Knight shift K includes contributions of both field-induced quasiparticles (QP) and a possible spin polarization of the condensate, the specific heat
C/T includes only the QP term. By comparing the field dependences of K and C/T, we establish an upper bound for the condensate response of < 10% of the normal-state susceptibility, which is sufficient to exclude odd-parity candidates.
Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.