Magnetic-Breakdown Oscillations in Magnetoresistivity in Aluminium Single Crystals

  • Hosoda Hiroki
    Laboratory of Crystal Physics, Faculty of Science, Hiroshima University
  • Ueda Yoshitake
    Laboratory of Crystal Physics, Faculty of Science, Hiroshima University
  • Kino Takao
    Laboratory of Crystal Physics, Faculty of Science, Hiroshima University

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タイトル別名
  • Magnetic Breakdown Oscillations in Magn

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The magnetoresistivity in zone-refined aluminium single crystals with the [100] axis and the [110] axis were measured at 4.2 K in magnetic fields from 3 T to 4 T. A period Δ(1⁄B) of magnetic-breakdown oscillations was investigated in several field directions near [001]. The period Δ(1⁄B) changed from 2.14×10−2 T−1 to 2.17×10−2 T−1 with respect to the field direction. The field-direction dependence of Δ(1⁄B) of the magnetic-breakdown oscillations is explained by the change in a sectional area of the Fermi surface in the third zone near the β-orbit with respect to a magnetic-field direction.

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