Abstract

Magnetoresistance and de Haas-van Alphen measurements have been performed to investigate the Fermi-surface property of LaNi 2 Al 5 , which is a reference material of the magnetic dense-Kondo compound CeNi 2 Al 5 . Thirteen branches with the frequencies from 1.25 ×10 6 to 101 × 10 6 Oe have been observed in the angular-resolved dHvA measurements, and the magnetoresistance shows the existence of open orbits. The results are well explained by the Fermi surfaces obtained from an FLAPW band-structure calculation.

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