期刊
JOURNAL OF THE KOREAN PHYSICAL SOCIETY
卷 62, 期 10, 页码 1542-1546出版社
KOREAN PHYSICAL SOC
DOI: 10.3938/jkps.62.1542
关键词
Uranium compounds; Magnetic properties; Metal hydrides; Non-Fermi liquid behavior; Heavy-fermion compounds
资金
- Grant Agency of the Czech Republic [204/12/0285, 204/10/0330]
- Charles University Grant Agency [436111]
- EuroMag-NET program under EU [228043]
We present specific heat and magnetic studies as a function of temperature and magnetic field for U-2(Ni1-x Fe (x) )(2)Sn alloys (x = 0.0, 0.05, 0.1, 0.15, 0.2, 0.4, 0.6 and 0.8) and their hydrides (absorption of a parts per thousand 2 H/f.u.). For the parent alloys, antiferromagnetic order is rapidly suppressed with increasing Fe concentration and non-Fermi-liquid behavior was found for x = 0.2. Hydrogenation of the parent alloys causes a substantial increase of T (N) in Fe-low hydrides (x < 0.2), while Fe-rich hydrides show an unexpected appearance of ferromagnetism in the range 0.4 a parts per thousand currency sign x a parts per thousand currency sign 0.8. Some of the findings are compared with similar studies in U2Co2Sn and U2Co2InH1.9.
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