Evidence for Appearance of an Internal Field in the Ordered State of CeRu^sub 2^Al^sub 10^ by [mu]+SR

We report zero-field ... + SR measurements made at J-PARC on CeRu ... Al ... . Below the phase transition temperature T ... ~27 K, a clear modulation of ... + polarization due to an internal field is observed, indicating that magnetic ordering takes place. Compared with the internal field expected f...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2010-05, Vol.79 (5), p.1
Main Authors: Kambe, Shinsaku, Chudo, Hiroyuki, Tokunaga, Yo, Koyama, Takehide, Sakai, Hironori, Ito, Takashi U, Ninomiya, Kazuhiko, Higemoto, Wataru, Takesaka, Tomoaki, Nishioka, Takashi, Miyake, Yasuhiro
Format: Article
Language:English
Subjects:
Chemical compounds
Magnetic fields
Phase transitions
Physics
Temperature effects
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Summary:We report zero-field ... + SR measurements made at J-PARC on CeRu ... Al ... . Below the phase transition temperature T ... ~27 K, a clear modulation of ... + polarization due to an internal field is observed, indicating that magnetic ordering takes place. Compared with the internal field expected from the effective magnetic moment in the disordered state, the observed internal field at the ... + site is quite small. This indicates that the ordered Ce magnetic moment is small (~10 ...) and/or the nearest pair of Ce magnetic moments are mutually anti-parallel. The T -dependence of the internal field is somewhat peculiar, suggesting that another ordering is taking place as well. (ProQuest: ... denotes formulae/symbols omitted.)
ISSN:0031-9015
1347-4073