Spin-flop quasi metamagnetic, anisotropic magnetic, and electrical transport behavior of Ho substituted kagome magnet ErMn6Sn6

We report on the magnetic and electrical properties of a (Mn3Sn)(2) triangular network kagome structured high quality Ho substituted ErMn6Sn6 single-crystal sample by magnetotransport measurements. Er(0.5)Ho(0.5)Mn(6)S(n)6 orders antiferromagnetically at Neel temperature T-N similar to 350 K followed by a ferrimagnetic (FiM) transition at T-C similar to 114 K and spin-orientation transition at T-t similar to 20 K. The field manifestations of these magnetic phases in the ab-basal plane and along the c axis are illustrated through temperature-field T-H phase diagrams. In H parallel to c, narrow hysteresis between spin reorientation and field-induced FiM phases below T-t, enhanced/strengthened FiM phase below T-C and stemming of FiM phase out of strongly coexisting antiferromagnetic and FiM phases below T-N through a non-meta-magnetic transition are confirmed to arise from strong R-Mn sublattices interaction. In contrast, in the H parallel to ab plane, between T-N and T-C, individually contributing R-Mn sublattices with weak antiferromagnetic interactions undergo a field-induced spin-flop quasi metamagnetic transition to FiM state. The temperature-dependent electrical resistivity suggests metallic nature with Fermi liquid behavior at low temperatures. Essentially, the current study stimulates interest to investigate the magnetic and electrical properties of mixed rare-earth layered kagome magnetic metals for possible novel and exotic behavior.