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We report a detailed magnetotransport study on single crystals of PrBi. Thepresence of $f$-electrons in this material raises the prospect of realizing astrongly correlated version of topological semimetals. PrBi shows a magneticfield induced metal insulator transition below $T \sim 20$ K and a very largemagnetoresistance ($\approx 4.4 \times 10^4~$) at low temperatures ($T= 2$ K).We have also probed the Fermi surface topology by de Haas van Alphen (dHvA) andShubnikov de Haas (SdH) quantum oscillation measurements complimented withdensity functional theory (DFT) calculations of the band structure and theFermi surface. Angle dependence of the SdH oscillations have been carried outto probe the possible signature of surface Dirac fermions. We find threefrequencies corresponding to one electron ($\alpha$) and two hole ($\beta$ and$\gamma$) pockets in experiments, consistent with DFT calculations. The angulardependence of these frequencies is not consistent with a two dimensional Fermisurface suggesting that the transport is dominated by bulk bands. Although thetransport properties of this material originate from the bulk bands, the highmobility and small effective mass are comparable to other compounds in thisseries proposed as topologically nontrivial.

Fermi surface topology and large magnetoresistance in the topological semimetal candidate PrBi