Shubnikov-de Haas oscillation in the cubic Γ3-based heavy fermion superconductor PrV2Al20

Abstract

PrV2Al20 is the cubic Γ3 doublet system that exhibits strong hybridization effects and heavy fermion superconductivity. We measured the magnetoresistance using a high quality single crystal of PrV2Al20 under the DC high magnetic field up to 35 T below ∼ 0.4 K. We have succeeded in detecting the Shubnikov-de Haas (SdH) oscillation with a frequency of 250 T. Our analysis of this SdH oscillation yields the cyclotron effective mass (m∗c/m0 ∼ 5) and the mean-free path (l =170 Å).