Journal of the Korean Physical Society

pISSN 0374-4884 eISSN 1976-8524

Article

Published online January 31, 2024     https://doi.org/10.1007/s40042-023-00987-4

Copyright © The Korean Physical Society.

Random‑singlet‑like state emergent in s = 5/2 frustrated cubic lattice

Chanhyeon Lee, Sang‑Kwon Lee, Suheon Lee, J. van Tol, Kwang‑Yong Choi

J. Korean Phys. Soc. 84(2), 151 - 157 (2024)

Abstract

The existence and nature of a random singlet phase in higher dimensions remains elusive, despite certain theories and experiments alluding to its potential stability. In the frustrated cubic antiferromagnet La3Sb3Mn2O14, we identify a scaling relation in ac magnetic susceptibility and magnetization with a scaling exponent of 0.53, giving evidence for emergent random singlets rather than a spin glass. This finding extends the notion of a random-singlet state from low-dimensional quantum to three-dimensional S=5/2 frustrated spin systems.