Cubic CeZn shows a structural phase transition under pressure, and it modifies the ground state from an antiferromagnetic (AFM) state to a ferromagnetic (FM) state. To investigate how the FM state terminates at a quantum phase transition, we measured the electrical resistivity under pressure for a single crystal CeZn. The transition temperature into the FM state decreases monotonously with increasing pressure, accompanied by the pronounced Kondo effect, but a drastic change in the field response occurs before the ordered phase terminates. This result suggests that the FM quantum critical point is avoided by the appearance of an AFM-like state.
@article{arxiv.2211.13401,
title = {Avoided ferromagnetic quantum critical point in CeZn},
author = {Hisashi Kotegawa and Toshiaki Uga and Hideki Tou and Eiichi Matsuoka and Hitoshi Sugawara},
journal= {arXiv preprint arXiv:2211.13401},
year = {2022}
}