Magnetic properties of single-crystalline UCu{sub 3}Al{sub 2}
- Amsterdam Univ. (Netherlands). Van der Waals Lab.
- Charles Univ., Prague (Czech Republic). Dept. of Metal Physics
- Philips Research Labs., Eindhoven (Netherlands)
- Ural State Univ., Ekaterinburg (Russian Federation)
- Los Alamos National Lab., NM (United States)
- National Inst. of Standards and Technology (IMSE), Gaithersburg, MD (United States). Reactor Radiation Div.
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 la sites, while the 2c sites are occupied by Cu atoms only and a random occupation of the 3g sites by the remaining Cu and Al is found. The magnetic susceptibility, measured on a single crystal grown by the Czochralski tri-arc technique, is found to be maximal within the hexagonal basal plane with a maximum at about 10 K. For fields applied within 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.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-36
- OSTI ID:
- 10166225
- Report Number(s):
- LA-UR-93-2170; CONF-930860-1; ON: DE93016607
- Resource Relation:
- Journal Volume: 30; Journal Issue: 2; Conference: EMMA `93: 5th European magnetic materials and applications conference,Kosice (Slovakia),24-27 Aug 1993; Other Information: PBD: [1993]
- Country of Publication:
- United States
- Language:
- English
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