Magnetic properties of single-crystalline UCu{sub 3}Al{sub 2}
- Univ. of Amsterdam (Netherlands). Van der Waals-Zeeman Lab.; and others
UCu{sub 3}Al{sub 2}, crystallizes in an ordered variant of the hexagonal CaCu{sub 5} structure. By neutron powder-diffraction, the U atoms were found to occupy the 1a sites, while the 2c sites are occupied by Cu atoms only and a random occupation of the 39 sites by the remaining Cu and Al is found. The magnetic susceptibility, measured on a single crystal grown by the Czochralski triarc technique, is found to be maximal within the hexagonal basal plane with a maximum at about 10 K. For fields applied with the basal plane, the magnetization at 4.2 K exhibits a slight S-shape starting slightly below 15 T. No such anomalies are found for fields applied along the c-axis where the magnetic response is found to be much lower. No additional magnetic peaks, which could be related With long-range antiferromagnetic ordering, were detected in the neutron powder-patterns at low temperatures.
- OSTI ID:
- 40273
- Report Number(s):
- CONF-930860-; ISSN 0018-9464; TRN: IM9520%%468
- Journal Information:
- IEEE Transactions on Magnetics, Vol. 30, Issue 2Pt2; Conference: EMMA `93: 5th European magnetic materials and applications conference, Kosice (Slovakia), 24-27 Aug 1993; Other Information: PBD: Mar 1994
- Country of Publication:
- United States
- Language:
- English
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