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Parasitic ferromagnetism in a hexaboride?

Author

Listed:
  • K. Matsubayashi

    (Graduate School of Science, Nagoya University)

  • M. Maki

    (Graduate School of Science, Nagoya University)

  • T. Tsuzuki

    (Graduate School of Science, Nagoya University)

  • T. Nishioka

    (Graduate School of Science, Nagoya University)

  • N. K. Sato

    (Graduate School of Science, Nagoya University)

Abstract

Surprisingly for a compound with no magnetic element, Young et al.1 have observed ferromagnetism in calcium hexaboride (CaB6) doped with lanthanum (La) — the system has a ferromagnetic Curie temperature as high as 600 K, which is comparable to that of transition-metal ferromagnets such as iron (Fe). Here we show that high-temperature ferromagnetism in this CaB6 system is not intrinsic but that it is instead due to alien phases of iron and boride.

Suggested Citation

  • K. Matsubayashi & M. Maki & T. Tsuzuki & T. Nishioka & N. K. Sato, 2002. "Parasitic ferromagnetism in a hexaboride?," Nature, Nature, vol. 420(6912), pages 143-144, November.
    • Handle: RePEc:nat:nature:v:420:y:2002:i:6912:d:10.1038_420143b
    DOI: 10.1038/420143b
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