Transport and magnetic properties of icosahedral and glassy Pd-U-Si alloys
The glassy phase of Pd/sub 58.8/U/sub 20.6/Si/sub 20.6/ alloys can be transformed into an icosahedral quasicrystalline phase by thermal annealing. Electrical transport properties of samples undergoing different degrees of glassy-to-icosahedral phase transformation have been measured. The icosahedral phase has an electrical resistivity of --220 ..mu cap omega.. cm at room temperature and a negative temperature coefficient of resistivity. The short electronic mean free path is discussed. At low temperature, the negative magnetoresistivity is attributed to magnetic scattering effects. The low-field ac susceptibility as a function of temperature exhibits a spin-glass-type transition which is not suppressed by a dc magnetic field.
- Research Organization:
- Department of Physics, University of Virginia, Charlottesville, Virginia 22901
- OSTI ID:
- 5113558
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 34:10; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360104* -- Metals & Alloys-- Physical Properties
ACTINIDE ALLOYS
ALLOYS
ANNEALING
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
FERMIONS
GLASS
HEAT TREATMENTS
LEPTONS
LOW TEMPERATURE
MAGNETIC PROPERTIES
MAGNETORESISTANCE
MEAN FREE PATH
MEDIUM TEMPERATURE
PALLADIUM ALLOYS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
SILICON ALLOYS
SPIN GLASS STATE
ULTRALOW TEMPERATURE
URANIUM ALLOYS
VERY LOW TEMPERATURE