Recent experiments have established a strong case for Ce2(Zr, Sn, Hf)2O7 to host π-flux quantum spin ice (QSI). However, an irrefutable conclusion still requires strong, multifaceted evidence. In dipolar-octupolar (DO) compounds, external magnetic fields only strongly couple with the dipolar component τz along its local z-axis in contrast to octupolar components τx,y. This gives rise to the unique ways magnetic fields interact with the system and, in turn, provides us with a variety of tuning knobs to generate comprehensive experimental results. In this work, we focus on magnetic fields along the (110), (111), and (001) directions and present a plethora of remarkable experimental signatures to probe the underlying physics of π-flux QSI using gauge mean field theory (GMFT) and Monte Carlo simulations. In particular, we present unique signatures in magnetic field-dependent phase diagrams, equal-time and dynamical structure factors, and magnetostriction.
@article{arxiv.2502.14067,
title = {Towards a global phase diagram of Ce-based dipolar-octupolar pyrochlore magnets under magnetic fields},
author = {Zhengbang Zhou and Yong Baek Kim},
journal= {arXiv preprint arXiv:2502.14067},
year = {2025}
}