Field-induced quantum phase in a frustrated zigzag-square lattice
Strongly Correlated Electrons
2023-09-27 v1
Abstract
This study presents the experimental realization of a spin-1/2 zigzag-square lattice in a verdazyl-based complex, namely (-Py-V-2,6-F)Cu(hfac). Molecular orbital calculations suggest the presence of five types of frustrated exchange couplings. Our observations reveal an incremental increase in the magnetization curve beyond a critical field, signifying a phase transition from the antiferromagnetic ordered state to a quantum state characterized by a 1/2 plateau. This intriguing behavior arises from the effective stabilization of a zigzag chain by the external fields. These results provide evidence for field-induced dimensional reduction in a zigzag-square lattice attributed to the effects of frustration.
Keywords
Cite
@article{arxiv.2309.14619,
title = {Field-induced quantum phase in a frustrated zigzag-square lattice},
author = {Hironori Yamaguchi and Kazutoshi Shimamura and Yasuo Yoshida and Akira Matsuo and Koichi Kindo and Kiichi Nakano and Satoshi Morota and Yuko Hosokoshi and Takanori Kida and Yoshiki Iwasaki and Seiya Shimono and Koji Araki and Masayuki Hagiwara},
journal= {arXiv preprint arXiv:2309.14619},
year = {2023}
}
Comments
5 pages, 4 figures