Highly anisotropic magnetism in the vanadium-based kagome metal <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi>TbV</mml:mi></mml:mrow><mml:mn>6</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mi>Sn</mml:mi></mml:mrow><mml:mn>6</mml:mn></mml:msub></mml:math>
Ganesh Pokharel, Brenden R. Ortiz, Juan R. Chamorro, Paul M. Sarte, Linus Kautzsch, Guang Wu, Jacob Ruff, Stephen D. Wilson
Abstract
${R\mathrm{V}}_{6}{\mathrm{Sn}}_{6}$ ($R$ = rare earth) compounds are appealing materials platforms for exploring the interplay between $R$-site magnetism and nontrivial band topology associated with the nonmagnetic vanadium-based kagome network. Here we present the synthesis and characterization of the kagome metal ${\mathrm{TbV}}_{6}{\mathrm{Sn}}_{6}$ via single crystal x-ray diffraction, magnetization, transport, and heat capacity measurements. Magnetization measurements reveal strong, uniaxial magnetic anisotropy rooted in the alignment of ${\mathrm{Tb}}^{3+}$ moments in the interplane direction below 4.3(2) K. ${\mathrm{TbV}}_{6}{\mathrm{Sn}}_{6}$ exhibits multiband transport behavior with high mobilities of charge carriers, and our measurements suggest ${\mathrm{TbV}}_{6}{\mathrm{Sn}}_{6}$ is a promising candidate for hosting Chern gaps driven via the interplay between Tb-site magnetic order and the band topology of the V-site kagome network.