Details

Autor(en) / Beteiligte

• Simutis, G
• Takayama, T
• Barthélemy, Q
• Bert, F
• Takagi, H
• Mendels, P

Titel

Magnetic correlations in the semimetallic hyperkagome iridate Na3Ir3 O8

Ist Teil von

• Physical review. B, 2021-03, Vol.103 (10), p.1

Ort / Verlag

College Park: American Physical Society

Erscheinungsjahr

2021

Quelle

APS_美国物理学会期刊

Beschreibungen/Notizen

• We present a microscopic study of a doped quantum spin liquid candidate, the hyperkagome Na3 Ir3 O8 compound, by using 23Na NMR. We determine the intrinsic behavior of the uniform q = 0 susceptibility via shift measurements and the dynamical response by probing the spin-lattice relaxation rate. Throughout the studied temperature range, the susceptibility is consistent with a semimetal behavior, though with electronic bands substantially modified by correlations. Remarkably, the antiferromagnetic fluctuations present in the insulating parent compound Na4 Ir3 O8 survive in the studied compound. The spin dynamics are consistent with 120 ∘ excitation modes displaying short-range correlations.