Study of the electronic properties of topological kagome metals YV$_6$Sn$_6$ and GdV$_6$Sn$_6$

Ganesh Pokharel; Samuel M. L. Teicher; Brenden R. Ortiz; Paul M. Sarte; Guang Wu; Shuting Peng; Junfeng He; Ram Seshadri; Stephen D. Wilson

doi:10.1103/PhysRevB.104.235139

paper

Study of the electronic properties of topological kagome metals YV $_{6}$ Sn $_{6}$ and GdV $_{6}$ Sn $_{6}$

arXiv:2109.07394 · doi:10.1103/PhysRevB.104.235139

Abstract

The synthesis and characterization of vanadium-based kagome metals YV $_{6}$ Sn $_{6}$ and GdV $_{6}$ Sn $_{6}$ are presented. X-ray diffraction, magnetization, magnetotransport, and heat capacity measurements reveal an ideal kagome network of V-ions coordinated by Sn and separated by triangular lattice planes of rare-earth ions. The onset of low-temperature, likely noncollinear, magnetic order of Gd spins is detected in GdV $_{6}$ Sn $_{6}$ , while V-ions in both compounds remain nonmagnetic. Density functional theory calculations are presented modeling the band structures of both compounds, which can be classified as $Z_{2}$ topological metals in the paramagnetic state. Both compounds exhibit high mobility, multiband transport and present an interesting platform for controlling the interplay between magnetic order associated with the $R$ -site sublattice and nontrivial band topology associated with the V-based kagome network. Our results invite future exploration of other $R$ V $_{6}$ Sn $_{6}$ ( $R$ =rare earth) variants where this interplay can be tuned via $R$ -site substitution.

11 pages, 10 figures

Study of the electronic properties of topological kagome metals YV $_{6}$ Sn $_{6}$ and GdV $_{6}$ Sn $_{6}$

Abstract

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Cited by in corpus (62)

Study of the electronic properties of topological kagome metals YV6​Sn6​ and GdV6​Sn6​

Abstract

References in corpus (16)

Cited by in corpus (62)

Study of the electronic properties of topological kagome metals YV $_{6}$ Sn $_{6}$ and GdV $_{6}$ Sn $_{6}$