Year: 2019
Type: article
Abstract: The delafossite structure of NaYbS 2 contains a planar spin-1/2 triangular lattice of Yb 3+ ions and features a possible realisation of a quantum spin-liquid state. We investigated the Yb 3+ spin dynamics by electron spin resonance (ESR) in single-crystalline samples of NaYbS 2 . Very clear spectra with a well-resolved and large anisotropy could be observed down to the lowest accessible temperature of 2.7 K. In contrast to the ESR properties of other known spin-liquid candidate systems, the resonance seen in NaYbS 2 is accessible at low fields (<1 T) and is narrow enough for accurate characterisation of the relaxation rate as well as the g factor of the Yb 3+ spins.
Authors: Jörg Sichelschmidt, Philipp Schlender, Burkhard Schmidt, Michael Baenitz, Thomas Doert
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,700
Funder: Deutsche Forschungsgemeinschaft
Award: G5823926222
OpenAlex ID: W2904789006