High Magnetic Field Transport Properties of η-Mo4O11 Crystals

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  • Koyano Mikio
    Department of Materials Science, Faculty of Science, Hiroshima University
  • Ôhara Shigeo
    Department of Materials Science, Faculty of Science, Hiroshima University
  • Hara Yoshiaki
    Department of Materials Science, Faculty of Science, Hiroshima University
  • Inoue Masasi
    Department of Materials Science, Faculty of Science, Hiroshima University
  • Kido Giyuu
    Institute for Materials Research, Tohoku University
  • Nakagawa Yasuaki
    Institute for Materials Research, Tohoku University

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タイトル別名
  • High Magnetic Field Transport Properties of η-Mo<SUB>4</SUB>O<SUB>11</SUB> Crystals
  • High Magnetic Field Transport Propertie

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Magnetoresistance and Hall effect have been measured at 4.2 K using a hybrid magnet up to 26 T for several crystals of quasi-two-dimensional η-Mo4O11 that has a charge-density-wave (CDW) induced nested multiple carrier band structure. The magnetoresistance is exceptionally large and the Hall resistivity shows a unique magnetic field dependence. We have confirmed the existence of characteristic hysteresis phenomena in both quantities between up- and down-sweeps of an applied magnetic field, as well as Shubnikov-de Haas (SdH) oscillations. The hysteresis effects can be related with a magnetic field dependent irreversible process for the CDW formation and destruction. These transport properties are found to be sample-dependent.

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