Speaker
Gediminas Simutis
(PSI - Paul Scherrer Institut, Villigen, Switzerland; Laboratoire de Physique des Solides, Paris-Saclay University and CNRS, France)
Description
We present a microscopic study of a doped quantum spin liquid candidate, the Hyperkagome Na3Ir3O8 compound, by using 23Na NMR (1). 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 Na4Ir3O8 survive in the studied compound. The spin dynamics are consistent with 120 degrees excitation modes displaying short-range correlations.
Primary authors
Gediminas Simutis
(PSI - Paul Scherrer Institut, Villigen, Switzerland; Laboratoire de Physique des Solides, Paris-Saclay University and CNRS, France)
Dr
T. Takayama
(Institute for Functional Matter and Quantum Technologies, University of Stuttgart, Germany; Max Planck Institute for Solid State Research, Stuttgart, Germany)
Dr
Q. Barthelemy
(Laboratoire de Physique des Solides, Paris-Saclay University and CNRS, France)
Prof.
F. Bert
(Laboratoire de Physique des Solides, Paris-Saclay University and CNRS, France)
Prof.
H. Takagi
(Institute for Functional Matter and Quantum Technologies, University of Stuttgart, Germany; Max Planck Institute for Solid State Research, Stuttgart, Germany)
Prof.
P. Mendels
(Laboratoire de Physique des Solides, Paris-Saclay University and CNRS, France)
