Details

Autor(en) / Beteiligte

• Sarkar, R
• Schlender, Ph
• Grinenko, V
• Haeussler, E
• Baker, Peter J
• Doert, Th
• Klauss, H-H

Titel

Quantum spin liquid ground state in the disorder free triangular lattice NaYbS2

Ist Teil von

• Physical review. B, 2019-12, Vol.100 (24), p.1

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2019

Quelle

American Physical Society Journals

Beschreibungen/Notizen

• Rare-earth delafossites were recently proposed as promising candidates for the realization of an effective S = 1/2 quantum spin liquid (QSL) on the triangular lattice. In contrast to the most actively studied triangular-lattice antiferromagnet YbMgGaO4, which is known for considerable structural disorder due to site intermixing, NaYbS2 delafossite realizes structurally ideal triangular layers. We present detailed muon spin rotation ( μ SR ) studies on this regular (undistorted) triangular Yb sublattice based system with an effective spin Jeff = 1/2 in the temperature range 0.05–40 K. Zero-field and longitudinal-field μ SR studies confirm the absence of any long-range magnetic order state down to 0.05 K ( ∼ J / 80 ). Current μ SR results, together with the so far available bulk characterization data, suggest that NaYbS2 is an ideal candidate to identify the QSL ground state.