Stabilization of Phase IV in CexLa1―xB6 (x = 0.4, 0.5) by Pr and Nd Ion Dopings

We have studied the effect of magnetic rare-earth ion (Pr, Nd) doping on phase IV in CexLa1-xB6 (x=0.4,0.5) systems. An unexpected large increase in the IV-I transition temperature TIV-I by Pr and Nd dopings was observed, while no such increase was observed for x≥0.6. Although we do not know the rea...

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Bibliographic Details
Published in:Journal of the Physical Society of Japan 2009-09, Vol.78 (9)
Main Authors: KONDO, Akihiro, TANIGUCHI, Toshihiro, TANIDA, Hiroshi, MATSUMURA, Takeshi, SERA, Masafumi, IGA, Fumitoshi, TOU, Hideki, SAKAKIBARA, Toshiro, KUNII, Satoru
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Physics
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Summary:We have studied the effect of magnetic rare-earth ion (Pr, Nd) doping on phase IV in CexLa1-xB6 (x=0.4,0.5) systems. An unexpected large increase in the IV-I transition temperature TIV-I by Pr and Nd dopings was observed, while no such increase was observed for x≥0.6. Although we do not know the reason why the doping effect markedly differs between x≤0.5 and x≥0.6 at present, the order parameter in phase IV for x≤0.5 is coupled with the magnetic dipole moment of Pr and Nd ions and phase IV is stabilized.
ISSN:0031-9015
1347-4073
DOI:10.1143/jpsj.78.093708