Anomalous Hall effect and magnetoresistance in microribbons of the magnetic Weyl semimetal candidate PrRhC2

${\mathrm{PrRhC}}_{2}$ belongs to the rare-earth carbides family, whose properties are of special interest among topological semimetals due to the simultaneous breaking of both inversion and time-reversal symmetry. The concomitant absence of both symmetries grants the possibility to tune the Weyl nodes chirality and to enhance topological effects such as the chiral anomaly. In this paper, we report on the synthesis and compare the magnetotransport measurements of polycrystalline ${\mathrm{PrRhC}}_{2}$ samples and a single-crystalline ${\mathrm{PrRhC}}_{2}$ sample. Using a remarkable and sophisticated technique, the ${\mathrm{PrRhC}}_{2}$ single crystal is prepared via focused-ion-beam cutting from the polycrystalline material. Our magnetometric and specific heat analyses reveal a noncollinear antiferromagnetic state below $20\phantom{\rule{0.28em}{0ex}}\mathrm{K}$, as well as short-range magnetic correlations and/or magnetic fluctuations well above the onset of the magnetic transition. The transport measurements on the ${\mathrm{PrRhC}}_{2}$ single crystal display an electrical resistivity peak at $3\phantom{\rule{0.28em}{0ex}}\mathrm{K}$ and an anomalous Hall effect below $6\phantom{\rule{0.28em}{0ex}}\mathrm{K}$ indicative of a net magnetization component in the ordered state. Furthermore, we study the angular variation of magnetoresistivities as a function of the angle between the in-plane magnetic field and the injected electrical current. We find that both the transverse and the longitudinal resistivities exhibit fourfold angular dependencies due to higher-order terms in the resistivity tensor, consistent with the orthorhombic crystal symmetry of ${\mathrm{PrRhC}}_{2}$. Our experimental results may be interpreted as features of topological Weyl semimetallic behavior in the magnetotransport properties.