Magnetoresistance and Kohler rule in the topological chiral semimetals CoSi

Abstract

The transverse and longitudinal magnetoresistance (MR) of two samples of the topological chiral semimetal CoSi with different RRR was studied. It is shown that the Kohler rule works for the transverse MR. The Kohler rule is also fulfilled in the case of longitudinal MR at a low reduced magnetic field. A sharp deviation of longitudinal MR curve for sample with low RRR from the Kohler prediction at high fields reveals its tendency to a sign change at higher magnetic fields. The Shubnikov de Haas quantum oscillations were observed and analyzed in both perpendicular and parallel configurations of the current and magnetic field in sample CoSi 1 with RRR 9.33 at low temperatures.

5 pages, 9 figures

References in corpus (7)

• Multiple types of topological fermions in transition metal silicides
• Large Fermi Arcs in Unconventional Weyl Semimetal RhSi
• Negative longitudinal magnetoresistance in Dirac and Weyl metals
• Crystal growth and quantum oscillations in the topological chiral semimetal CoSi
• Extended Kohler${}^{,}$s Rule of Magnetoresistance
• Single crystal growth and magnetoresistivity study of topological semimetal CoSi
• Anisotropic magnetoresistance and memory effect in bulk systems with extended defects

Cited by in corpus (3)

• Intrinsic negative magnetoresistance from the chiral anomaly of multifold fermions
• Electrical conductivity and screening effect of spin-1 chiral fermions scattered by charged impurities
• Band Curvature Effects on Quantum Transport of Spin-1 Chiral Fermion Systems