Magnetic phase diagram of amorphous Cr1-xMnxGe

T. Sato, H. Kamei, T. Nemoto, E. Ohta, M. Sakata, T. Goto

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Abstract

Measurements of DC magnetic susceptibility and parallel AC susceptibility in DC magnetic fields are made on the amorphous Cr1-xMnxGe alloy system with 0<or=x<or=1 in the temperature range 4.2 K-420 K. On the basis of the magnetic measurements, the authors propose a magnetic phase diagram in which there is only one transition from paramagnetic to spin-glass phase in contrast with that for crystalline Cr1-xMnxGe, a re-entrant spin-glass system. This difference is attributed to the disappearance of the ferromagnetic contribution from the modified RKKY interaction due to amorphisation. The origin of the spin-glass interaction in the amorphous Cr 1-xMnxGe system and the variation of the spin-glass properties with composition are also discussed in detail.

Original languageEnglish
Article number025
Pages (from-to)1593-1600
Number of pages8
JournalJournal of Physics F: Metal Physics
Volume18
Issue number7
DOIs
Publication statusPublished - 1988 Dec 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy (miscellaneous)
  • Metals and Alloys

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    Sato, T., Kamei, H., Nemoto, T., Ohta, E., Sakata, M., & Goto, T. (1988). Magnetic phase diagram of amorphous Cr1-xMnxGe. Journal of Physics F: Metal Physics, 18(7), 1593-1600. [025]. https://doi.org/10.1088/0305-4608/18/7/025