11B NMR Study of Magnetism in RRh3B2 (R = La, Ce, Nd, Sm, Eu and Gd)

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Author(s)

    • Kawasaki Yu
    • Department of Physics, Faculty of Engineering, University of Tokushima
    • Ohno Takashi
    • Department of Physics, Faculty of Engineering, University of Tokushima

Abstract

In order to study the magnetism in RRh<SUB>3</SUB>B<SUB>2</SUB> (R=La, Ce, Nd, Sm, Eu and Gd), <SUP>11</SUP>B NMR has been measured systematically. LaRh<SUB>3</SUB>B<SUB>2</SUB> was shown to be simply paramagnetic in the normal state, and GdRh<SUB>3</SUB>B<SUB>2</SUB> and NdRh<SUB>3</SUB>B<SUB>2</SUB> ferromagnetic with the well localized moments. In CeRh<SUB>3</SUB>B<SUB>2</SUB>, the <I>K</I>–χ plot and 1⁄<I>T</I><SUB>1</SUB> can be interpreted in a localized moment model with a large reduction in the effective moment, and a small magnetic moment is considered to be localized at the Ce site below <I>T</I><SUB>c</SUB>. For SmRh<SUB>3</SUB>B<SUB>2</SUB>, 1⁄<I>T</I><SUB>1</SUB> cannot be explained by the localized moment model, and it was found that the antiferromagnetic spin fluctuation exists in the paramagnetic state. The temperature dependence of 1⁄<I>T</I><SUB>1</SUB><I>T</I> indicates that EuRh<SUB>3</SUB>B<SUB>2</SUB> is a weak antiferromagnet.

Journal

  • Journal of the Physical Society of Japan

    Journal of the Physical Society of Japan 73(7), 1970-1981, 2004

    THE PHYSICAL SOCIETY OF JAPAN

Codes

  • NII Article ID (NAID)
    130004538858
  • Text Lang
    ENG
  • ISSN
    0031-9015
  • Data Source
    J-STAGE 
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