Spin-flop quasi metamagnetic, anisotropic magnetic, and electrical transport behavior of Ho substituted kagome magnet ErMn6Sn6
Abstract
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 magneto-transport measurements. Er0.5Ho0.5Mn6Sn6 orders antiferromagnetically at N\'eel temperature TN 350 K followed by a ferrimagnetic (FiM) transition at TC 114 K and spin-orientation transition at Tt 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, narrow hysteresis between spin reorientation and field-induced FiM phases below Tt, enhanced/strengthened FiM phase below TC and stemming of FiM phase out of strongly coexisting AFM and FiM phases below TN through a non-meta-magnetic transition are confirmed to arise from strong R-Mn sublattices interaction. In contrast, H-plane, between TN and TC, 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.
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