Spectrum and low-temperature bulk properties of triangular quantum spin liquid candidate NaYbSe$_2$
A. O. Scheie, Minseong Lee, Kevin Wang, P. Laurell, E. S. Choi, D. Pajerowski, Qingming Zhang, Jie Ma, H. D. Zhou, Sangyun Lee, Chao Huan, S. M. Thomas, M. O. Ajeesh, P. F. S. Rosa, Ao Chen, Vivien S. Zapf, M. Heyl, C. D. Batista, E. Dagotto, J. E. Moore, D. Alan Tennant
TL;DR
This study investigates the low-temperature magnetic properties of NaYbSe$_2$, a triangular quantum spin liquid candidate, using neutron scattering, calorimetry, and susceptibility measurements, revealing a continuum of excitations and spin liquid behavior.
Contribution
The paper provides comprehensive experimental evidence and simulations supporting NaYbSe$_2$ as a Heisenberg spin liquid with no phase transition down to very low temperatures.
Findings
Observation of a continuum of magnetic scattering.
No phase transition detected in bulk measurements.
Frequency-dependent susceptibility peak at 40 mK.
Abstract
We report neutron scattering, pressure-dependent AC calorimetry, and AC magnetic susceptibility measurements of triangular lattice NaYbSe. We observe a continuum of scattering, which is reproduced by matrix product simulations, and no phase transition is detected in any bulk measurements. Comparison to heat capacity simulations suggest the material is within the Heisenberg spin liquid phase. AC Susceptibility shows a frequency-dependent peak at 40 mK, as has been observed in several triangular magnets.
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Taxonomy
TopicsAdvanced Condensed Matter Physics