Electronic and magnetic properties of intermetallic kagome magnets <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>R</mml:mi><mml:msub><mml:mi mathvariant="normal">V</mml:mi><mml:mn>6</mml:mn></mml:msub><mml:msub><mml:mi>Sn</mml:mi><mml:mn>6</mml:mn></mml:msub><mml:mo>(</mml:mo><mml:mi>R</mml:mi><mml:mo>=</mml:mo><mml:mi mathvariant="normal">Tb</mml:mi><mml:mtext>−</mml:mtext><mml:mi mathvariant="normal">Tm</mml:mi><mml:mo>)</mml:mo></mml:math>
Xiaoxiao Zhang, Ziyi Liu, Qi Cui, Qi Guo, Ningning Wang, Lifen Shi, Hua Zhang, Weihua Wang, Xiaoli Dong, Jianping Sun, Zhiling Dun, Jinguang Cheng
Abstract
We present a systematic study of the structure, electronic, and magnetic properties of a new branch of intermetallic compounds, $R{\mathrm{V}}_{6}{\mathrm{Sn}}_{6}(R=\mathrm{Tb}\text{\ensuremath{-}}\mathrm{Tm})$ by using x-ray diffraction, magnetic susceptibility, magnetization, electrical transport, and heat-capacity measurements. These compounds feature a combination of a nonmagnetic vanadium kagome sublattice and a magnetic rare-earth triangular sublattice that supports various spin anisotropies based on different $R$ ions. We find magnetic orders for the $R$ = Tb, Dy, and Ho compounds at 4.4, 3, and 2.5 K, respectively, while no ordering is detected down to 0.4 K for the $R$ = Er and Tm compounds with easy-plane anisotropies. Electronically, we found no superconductivity or charge ordering transition down to 0.4 K for any member of this family, while all compounds exhibit multiband transport properties.