De Haas-van alphen effect of FeP in double helical magnetic state

Tatsuhiro Nozue, Hisao Kobayashi, Noriaki Kimura, Haruyoshi Aoki, Takashi Kamimura

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5 Citations (Scopus)


The de Haas-van Alphen (dHvA) effect has been investigated on high-quality single crystals of FeP in a double helical magnetic state with a 5c period in the magnetic fields up to 14 T and at temperatures down to 0.42 K. Single crystals were grown by the chemical transport technique using iodine as the transport agent. Nineteen branches were observed in three crystallographic planes (100), (010) and (001), and analyzed with simple analytic equations for the Fermi surfaces. Many of the dHvA branches have a characteristic angular dependence and are found to correspond to the orbits on surfaces beyond the Brillouin zone in the magnetic state which is reduced to 1/5 of the non-magnetic one with the MnP-type along the [001] direction. These branches originate from the orbits caused by a magnetic breakdown phenomenon under high fields. Cyclotron mass ratios were obtained to be up to 5.9, whereas the electronic specific heat coefficient is rather small, 2.86 mJK-2mol-1.

Original languageEnglish
Pages (from-to)192-198
Number of pages7
JournalJournal of the Physical Society of Japan
Issue number1
Publication statusPublished - 2001 Jan


  • Cyclotron mass
  • dHvA effect
  • FeP
  • Fermi surface
  • Magnetic breakdown
  • Specific heat


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