We report specific heat, ac/dc magnetic susceptibility as well as static and pulsed field magnetization studies on the distorted kagome magnet Pr3BWO9 down to 0.4~K and up to high magnetic fields. The low-temperature thermodynamic properties are found to be governed by an electronic quasi-doublet ground state; the energy splitting of which amounts to Δ1≃18 K and exhibits a quadratic field dependence with geff=2.6. Fitting of the specific heat data implies that the next excited state is strongly gapped at Δ2=430 K and three-fold degenerate in zero field. Our dc and ac susceptibility studies down to 0.4 K do not detect signatures of distinct spin glass behavior. Pulsed field magnetization measurements up to 60 T confirm the Ising-like paramagnetic nature of the magnetic ground state which is characterized by mJ=±4 and the anisotropy energy Ea≃950 K.
@article{arxiv.2506.06070,
title = {Magnetic and thermodynamic studies on the distorted kagome magnet Pr$_3$BWO$_9$},
author = {Ahmed Elghandour and Jan Arneth and Annu Yadav and Sven Luther and Panchanan Khuntia and Rüdiger Klingeler},
journal= {arXiv preprint arXiv:2506.06070},
year = {2026}
}