Berlin 2024 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 87: Frustrated Magnets: Spin Liquids
TT 87.2: Vortrag
Freitag, 22. März 2024, 09:45–10:00, H 3010
Modifying Quantum Spin Liquid Candidate NaYbS2 — •Rajib Sarkar1, Ellen Häußler3, Hubertus Luetjens2, Christopher Baines2, Thomas Hicken2, Thomas Doert3, and Hans Henning Klauss1 — 1Institute of Solid State and Materials Physics, TU Dresden, D-01062 Dresden, Germany — 2Laboratory for Muon Spin Spectroscopy, PSI, Villigen, Switzerland — 3Faculty of Chemistry and Food Chemistry, TU Dresden, D-01062 Dresden, Germany
NaYbS2 is a candidate material for a pseudo-S = 1/2 based quantum spin liquid on the ideal triangular lattice. Single crystals of the solid solution series NaYb1−xLuxS2 could be synthesized over the entire substitution range 0 < x <1. The chemical and structural analysis of this series reveals the statistically homogeneous replacement of Yb3+ by Lu3+ ions. Long-range magnetic order has not been detected in magnetic susceptibility measurements at any x down to 2 K. This suggests NaYb1−xLuxS2 as a family of diluted triangular-lattice spin liquids. We started investigating this series at specific doping concentrations by means of zero field (ZF) and longitudinal field (LF) µSR experiments to test for the presence of static magnetism and to investigate the nature of the magnetic ground state.
Keywords: NaYbS$_2$; Triangular lattice; Muon; Spin liquid