论文标题
金属间kagome磁铁的电子和磁性特性
Electronic and magnetic properties of intermetallic Kagome magnets $R$V$_6$Sn$_6$ ($R$ = Tb - Tm)
论文作者
论文摘要
我们通过使用X射线衍射，磁敏感性，磁力化，磁力化，电气传输和热能测量值，对金属间化合物的结构，电子和磁性特性进行了系统研究。这些化合物具有非磁性钒kagome sublatice和磁性稀土三角sublattice的组合，该sublatice支持基于不同$ r $ $离子的各种自旋各向异性。我们在4.4、3、2.5 K处发现$ r $ = TB，DY和HO化合物的磁性订单，而对于$ r $ = ER和带有易于平面各向异性的TM化合物，未检测到订购至0.4 k。从电子上讲，我们发现该家族的任何成员都没有发现超导性或电荷订购过渡至0.4 K，而所有化合物均表现出源自来自Vanadium kagome sublattice的带拓扑的多波段传输特性。
We present a systematic study of the structure, electronic, and magnetic properties of a new branch of intermetalllic compounds, $R$V$_6$Sn$_6$ ($R$ = Tb - Tm) by using X-ray diffraction, magnetic susceptibility, magnetization, electrical transport, and heat-capacity measurements. These compounds feature a combination of a non-magnetic 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, 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 multi-band transport properties that originate from the band topology of the vanadium kagome sublattice.
