High-Field Torque Magnetometry on the Kagome Antiferromagnet Karpenkoite

2025/10/19 by Kunisawa, Hibiki, Watanabe, Ryuya, Yamaura, Jun-ichi +2
#FOS: Physical sciences #Strongly Correlated Electrons (cond-mat.str-el)

paper · doi:10.48550/arxiv.2510.17050

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.

Citations

• One-ninth magnetization plateau stabilized by spin entanglement in a kagome antiferromagnet

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