| Issue |
EPL
Volume 136, Number 1, October 2021
|
|
|---|---|---|
| Article Number | 17003 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties | |
| DOI | https://doi.org/10.1209/0295-5075/ac2651 | |
| Published online | 28 December 2021 | |
Ultra spin liquid in Lu3Cu2Sb3O14
1 Petersburg Nuclear Physics Institute, NRC Kurchatov Institute - Gatchina, 188300, Russia
2 Clark Atlanta University - Atlanta, GA 30314, USA
3 National Research University Higher School of Economics - St.Petersburg, 194100, Russia
(a) vrshag@thd.pnpi.spb.ru (corresponding author)
Received: 21 July 2021
Accepted: 13 September 2021
We analyze recent measurements of C/T, specific heat C divided by temperature T, of a recently observed ultra spin liquid. The measurements are carried out in magnetic fields on the triangular lattice compound 
. We show that the obtained heat capacity 
formed by the ultra spin liquid as a function of temperature T vs. magnetic field B behaves very similar to the electronic specific heat 
of the HF metal 
and the quantum magnet 
. We demonstrate that the effective mass of spinon 
exhibits the universal scaling coinciding with scaling observed in heavy-fermion (HF) metals and in . Based on these observations we conclude that a strongly correlated spin liquid determines the thermodynamic properties of the ultra spin liquid of .
© 2021 EPLA
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