ISSN:
1434-6036
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract New metallic glass alloys have been prepared by melt spinning of La−Si samples in a pumped system. The superconducting transition temperature,T c , increases linearly with the La concentration, from 3.00 K at 73 at. % La to 3.80 K at 85 at. %. Three new metastable phases: α-, β-, and γ-La3Si, were formed by annealing and crystallizing amorphous La3Si. Their crystal structures are orthorhombic (a=6.32 Å,b=8.06 Å,c=9.96 Å), hcp (a=10.55 Å,c=5.05 Å), and tetragonal (a=6.92 Å,c=5.05 Å) resp.T c increased to 3.75 K, 6.00 K and 6.80 K, resp. During low temperature anneals of an amorphous La3Si alloy,T c changed logarithmically with time.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01320536
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