Giant Anisotropic Magnetoresistance due to Purely Orbital Rearrangement in the Quadrupolar Heavy Fermion Superconductor PrV${}_2$Al${}_{20}$

Abstract

We report the discovery of giant and anisotropic magnetoresistance due to the orbital rearrangement in a non-magnetic correlated metal. In particular, we measured the magnetoresistance under fields up to 31.4 T in the cubic Pr-based heavy fermion superconductor PrV${}_2$Al${}_{20}$ with a non-magnetic ${\Gamma }_3$ doublet ground state, exhibiting antiferro-quadrupole ordering below 0.7 K. For the [100] direction, we find that the high-field phase appears between 12 T and 25 T, accompanied by a large jump at 12 T in the magnetoresistance ($\Delta MR\sim$ 100 $\%$) and in the anisotropic magnetoresistivity (AMR) ratio by $\sim$ 20 $\%$. These observations indicate that the strong hybridization between the conduction electrons and anisotropic quadrupole moments leads to the Fermi surface reconstruction upon crossing the field-induced antiferro-quadrupole (orbital) rearrangement.

arXiv comment5 pages, 3 figures

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Cited by in corpus (6)

• Unveiling Hidden Orders: Magnetostriction as a Probe of Multipolar-Ordered States
• Triple-$q$ quadrupole-octupole order scenario for PrV${}_2$Al${}_{20}$
• Unveiling Quadrupolar Kondo Effect in the Heavy Fermion Superconductor PrV${}_2$Al${}_{20}$
• Anisotropy of the magnetic-field-induced phase pocket in the non-Kramers doublet system PrIr${}_2$Zn${}_{20}$
• Quantum impurity model for two-stage multipolar ordering and Fermi surface reconstruction
• Transport properties of semimetallic transition metal dichalcogenides