Weak low-temperature ferromagnetism and linear magnetoresistance in Lu$_{0.75}$Fe$_6$Sn$_6$ with a disordered HfFe$_6$Ge$_6$-type structure

Chenfei Shi; Zhaodi Lin; Qiyuan Liu; Junai Lv; Xiaofan Xu; Baojuan Kang; Jin-Hu Yang; Yi Liu; Jian Zhang; Shixun Cao; Jin-Ke Bao

doi:10.1016/j.jmmm.2025.172793

paper

Weak low-temperature ferromagnetism and linear magnetoresistance in Lu $_{0.75}$ Fe $_{6}$ Sn $_{6}$ with a disordered HfFe $_{6}$ Ge $_{6}$ -type structure

arXiv:2507.10964 · doi:10.1016/j.jmmm.2025.172793

Abstract

We report the synthesis of Lu $_{0.75}$ Fe $_{6}$ Sn $_{6}$ single crystals with a Fe-kagome lattice using a self-flux method. The crystal structure, magnetic, thermodynamic and electrical transport properties were investigated. Structure refinement reveals that Lu $_{0.75}$ Fe $_{6}$ Sn $_{6}$ has a HfFe $_{6}$ Ge $_{6}$ -type structure as the major framework intergrown with a CoSn-type structure, leading to a vacancy of 25% on the Lu-site and disorder on the Sn-site. It exhibits a significant magnetic anisotropy with weak ferromagnetism in the ab-plane below 40 K and antiferromagnetic behavior along the c-axis. The weak ferromagnetism is due to the canted antiferromagnetism with magnetic moment deviating from the $c$ -axis to the ab-plane. Besides, an anisotropic non-saturated linear magnetoresistance is also observed in Lu $_{0.75}$ Fe $_{6}$ Sn $_{6}$ , probably resulting from the structural disorder in the sample.

20 pages, 6 figures

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Structural modulation, physical properties, and electronic band structure of the kagome metal UCr $_{6}$ Ge $_{6}$

Weak low-temperature ferromagnetism and linear magnetoresistance in Lu0.75​Fe6​Sn6​ with a disordered HfFe6​Ge6​-type structure

Abstract

References in corpus (27)

Cited by in corpus (1)

Weak low-temperature ferromagnetism and linear magnetoresistance in Lu $_{0.75}$ Fe $_{6}$ Sn $_{6}$ with a disordered HfFe $_{6}$ Ge $_{6}$ -type structure