Berlin 2018 – wissenschaftliches Programm

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TT: Fachverband Tiefe Temperaturen

TT 16: Superconductivity: Properties and Electronic Structure II

TT 16.2: Vortrag

Montag, 12. März 2018, 15:15–15:30, H 0110

Muon spin relaxation studies of Sr₂RuO₄ under uniaxial pressure — •Shreenanda Ghosh¹, Rajib Sarkar¹, Vadim Grinenko¹, Jean-Christophe Orain², Hubertus Luetkens², Joonbum Park³, Clifford Hicks³, and Hans-Henning Klauss¹ — ¹Institute of Solid State and Materials Physics, TU Dresden, D-01069 Dresden, Germany — ²Laboratory for Muon-Spin Spectroscopy, Paul Scherrer Institute, CH-5232 Villigen, Switzerland — ³Max-Planck Institute for Chemical Physics of Solids, 01187 Dresden, Germany

We present transverse field muon spin relaxation data on the unconventional superconductor Sr₂RuO₄ under uni axial pressure. Results from previous µSR studies on unstressed Sr₂RuO₄ indicate a spontaneous magnetization in the superconducting state [1], that has been associated with a time reversal symmetry breaking order parameter, p_x ± ip_y. The superconducting T_c of Sr₂RuO₄ has been shown experimentally to be sensitive to uni axial pressure [2], so for more information about the complex superconducting order parameter, we investigate pressurized Sr₂RuO₄ by µSR. For this purpose, we have developed a dedicated device, which offers in situ uni axial strain tuning via piezoelectric stacks.[5]
G.M.Luke et al., Nature, 394, 558 (1998).
J.R.Kirtley et al., Phys.Rev.B, 76, 014526 (2007).
C.W.Hicks et al., Science, 344, 283 (2014)
Steppke et al. Science 355,6321(2017)
C.Hicks et al.accepted in Conference proceedings of µSR 2017