Synthesis, Crystal Structure, and Magnetic Properties of UFe5Sn

✍ Scribed by A.P. Gonçalves; M. Godinho; H. Noël

• Publisher: Elsevier Science
• Year: 2000
• Tongue: English
• Weight: 322 KB
• Volume: 154
• Category: Article
• ISSN: 0022-4596
• DOI: 10.1006/jssc.2000.8878

✦ Synopsis

The UFe

Sn compound was synthesized by arc melting, followed by annealing at 8003C. The crystal structure was determined by single-crystal X-ray di4raction and re5ned to a residual value of R ‫؍‬ 0.035 (R w ‫؍‬ 0.031). This compound crystallizes in the orthorhombic CeCu 5 Au-type structure, space group Pnma, with lattice parameters a ‫؍‬ 8.082(3) A > , b ‫؍‬ 4.869(1) A > , and c ‫؍‬ 10.448(3) A > . Magnetization measurements were performed in the 5+300 K temperature range and under 5elds up to 5.5 T. The results indicate a weak ferromagnetic behavior at room temperature. Two magnetic anomalies are observed at 248 and 180 K, respectively, and the ferromagnetic character strongly increases below the highest temperature anomaly.