High-Field Torque Magnetometry on the Kagome Antiferromagnet Karpenkoite

Hibiki Kunisawa; Ryuya Watanabe; Jun-ichi Yamaura; Yoshimitsu Kohama; Toshihiro Nomura

doi:10.56646/jjapcp.12.0_011017

High-Field Torque Magnetometry on the Kagome Antiferromagnet Karpenkoite

Strongly Correlated Electrons 2026-02-20 v1

Authors: Hibiki Kunisawa , Ryuya Watanabe , Jun-ichi Yamaura , Yoshimitsu Kohama , Toshihiro Nomura

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Abstract

We report torque magnetometry results on single crystals of karpenkoite Co3(V2O7)(OH)2 2H2O, a model candidate for the kagome antiferromagnet. No field-induced phase transition is detected up to 45 T for B||c and B||a. Instead, the torque reveals a continuous spin reorientation toward saturation, most likely governed by a dominant Dzyaloshinskii-Moriya interaction.

Keywords

torque magnetometry kagome antiferromagnet karpenkoite Dzyaloshinskii-Moriya interaction spin reorientation

Cite

@article{arxiv.2510.17050,
  title  = {High-Field Torque Magnetometry on the Kagome Antiferromagnet Karpenkoite},
  author = {Hibiki Kunisawa and Ryuya Watanabe and Jun-ichi Yamaura and Yoshimitsu Kohama and Toshihiro Nomura},
  journal= {arXiv preprint arXiv:2510.17050},
  year   = {2026}
}

Comments

6 pages, 1 figure

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