Crystal structure and magnetic properties of the new ternary actinide compounds AnPdAl (An = U, Np)

Haga, Yoshinori ; Aoki, Dai*; Homma, Yoshiya*; Ikeda, Shugo; Matsuda, Tatsuma; Yamamoto, Etsuji ; Sakai, Hironori ; Tateiwa, Naoyuki ; Dung, N. D.*; Nakamura, Akio; Shiokawa, Yoshinobu*; Onuki, Yoshichika

We report the crystal structure and magnetic properties of new ternary actinide compounds UPdAl and NpPdAl. Both compounds crystallize in the body-center tetragonal ZrAlNi -type tetragonal structure (I 4/mmm). Although the magnetic susceptibility of both compounds follows the Curie-Weiss behavior at high temperature, no magnetic phase transition was observed. UPdAl has a nonmagnetic ground state where the magnetic susceptibility saturates at low temperature, while NpPdAl superconducts below 4.9 K as reported recently.

Language	:	English
Journal	:	Journal of Alloys and Compounds
Volume	:	464
Number	:	1-2
Pages	:	p.47 - 50
Publication Year/Month	:	2008/09
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Paper URL	:	https://doi.org/10.1016/j.jallcom.2007.10.037
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	第4研究棟
Press Release	:
Article of JAEA R&D Review	:	Heavy Fermion Superconductivity in Neptunium Compound; A New Material Advances Actinide Science[/]
Cooperating Institute	:	東北大学

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Registration No. : AA20070663
JAEA Abstracts No. : 36001412
Paper Submission No. : 4698

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