High-field magnetotransport studies in microstructures of Yb$_2$Pt$_2$Pb

Yb$_2$Pt$_2$Pb (YPP) is a strongly frustrated Shastry Sutherland (SSL) Anitiferromagnet with a a ordering temperature of $T{_N} = 2\,$K. The antiferromagnetic (AF) order is comprised of two AF sublattices built from dimers of Yb$^{3+}$ ions in the $ab$ planes [1]. Unlike other quantum magnets, YPP is a highly conductive metal [2]. Recently, exotic quantum effects were reported from neutron scattering experiments that indicate charge-orbital separation along the $c$ axis, similar to quasi-1D materials [3]. To study the influence of YPP’s rich magnetic structure on the anisotropic charge transport, we fabricated micron-sized transport devices from single crystalline YPP by Focused Ion Beam etching. This technique enables high-precision magnetotransport measurements along the most relevant lattice directions in magnetic fields of up to $65\,$T. Our findings reveal insights on the electronic structure of YPP. [1] Miiller, W. et al. PRB 93,104419 (2016) [2] Kim, M.S. and Aronson, M.C. PRL 110, 017201 (2013) [3] Wu, L. S. et al. Science 352,6290pp1206 (2016)