A Possible Novel Magnetic Ordering in SmRu_4P_<12>

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Abstract

We have carried out X-ray absorption spectroscopy, <SUP>149</SUP>Sm nuclear resonant forward scattering, and <SUP>99</SUP>Ru Mössbauer spectroscopy of SmRu<SUB>4</SUB>P<SUB>12</SUB>. The X-ray absorption spectra indicate that the Sm ions are trivalent up to 14 K. The quantum beats due to magnetic dipolar ordering are observed at 4.5 K in <SUP>149</SUP>Sm nuclear resonant forward scattering. The temperature dependence of time-integrated intensity in <SUP>149</SUP>Sm nuclear forward scattering suggests that the magnetic dipolar ordering occurs just below the metal–insulator transition temperature. No significant changes in the parameters are observed between 77 and 5 K in <SUP>99</SUP>Ru Mössbauer spectroscopy. The present result suggests a magnetic ordering accompanied by a magnetic dipole moment at the metal–insulator transition temperature in SmRu<SUB>4</SUB>P<SUB>12</SUB> in spite of the proposal of the magnetic ordering accompanied by a <I>T</I><SUP>β</SUP>-type octupole.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 75(9), "93703-1"-"93703-4", 2006-09-15

    The Physical Society of Japan (JPS)

References:  28

Cited by:  2

Codes

  • NII Article ID (NAID)
    110004789062
  • NII NACSIS-CAT ID (NCID)
    AA00704814
  • Text Lang
    ENG
  • Article Type
    Journal Article
  • ISSN
    00319015
  • NDL Article ID
    8055190
  • NDL Source Classification
    ZM35(科学技術--物理学)
  • NDL Call No.
    Z53-A404
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
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