Structures and physical properties of V-based kagome metals CsV$_{6}$Sb$_{6}$ and CsV$_{8}$Sb$_{12}$

Qiangwei Yin; Zhijun Tu; Chunsheng Gong; Shangjie Tian; Hechang Lei

doi:10.1088/0256-307X/38/12/127401

paper

Structures and physical properties of V-based kagome metals CsV $_{6}$ Sb $_{6}$ and CsV $_{8}$ Sb $_{12}$

arXiv:2110.11452 · doi:10.1088/0256-307X/38/12/127401

Abstract

We report two new members of V-based kagome metals CsV $_{6}$ Sb $_{6}$ and CsV $_{8}$ Sb $_{12}$ . The most striking structural feature of CsV $_{6}$ Sb $_{6}$ is the V kagome bilayers. For CsV $_{8}$ Sb $_{12}$ , there is an intergrowth of two-dimensional V kagome layers and one-dimensional V chains and the latter lead to the orthorhombic symmetry of this material. Further measurements indicate that these two materials exhibit metallic and Pauli paramagnetic behaviors. More importantly, different from CsV $_{3}$ Sb $_{5}$ , the charge density wave state and superconductivity do not emerge in CsV $_{6}$ Sb $_{6}$ and CsV $_{8}$ Sb $_{12}$ when temperature is above 2 K. Small magnetoresistance with saturation behavior and linear field dependence of Hall resistivity at high field and low temperature suggest that the carriers in both materials should be uncompensated with much different concentrations. The discovery of these two new V-based kagome metals sheds light on the exploration of correlated topological materials based on kagome lattice.

arXiv comment7 pages, 4 figures, 2 tables

Structures and physical properties of V-based kagome metals CsV $_{6}$ Sb $_{6}$ and CsV $_{8}$ Sb $_{12}$

Abstract

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Structures and physical properties of V-based kagome metals CsV6​Sb6​ and CsV8​Sb12​

Abstract

References in corpus (25)

Cited by in corpus (13)

Structures and physical properties of V-based kagome metals CsV $_{6}$ Sb $_{6}$ and CsV $_{8}$ Sb $_{12}$