High pressure synthesis and superconducting properties of yttrium sesquicarbide

The body-centered cubic Pu 2C 3-type structure of yttrium sesquicarbide, Y 2C 3, has been prepared in high yield by high pressure-high temperature techniques. Lattice parameter measurements indicate a homogeneity range for the compound. Magnetic susceptibility measurements show the material is super...

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Bibliographic Details
Published in:Journal of the less-common metals 1969, Vol.17 (1), p.91-98
Main Authors: Krupka, M.C., Giorgi, A.L., Krikorian, N.H., Szklarz, E.G.
Format: Article
Language:English
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Summary:The body-centered cubic Pu 2C 3-type structure of yttrium sesquicarbide, Y 2C 3, has been prepared in high yield by high pressure-high temperature techniques. Lattice parameter measurements indicate a homogeneity range for the compound. Magnetic susceptibility measurements show the material is superconducting over the entire homogeneity range with the superconducting transition temperature varying from a low of 6.0 °K to a high of 11.5 °K. High temperature-ambient pressure annealing of samples prepared by the high pressure-high temperature techniques destroyed the Pu 2C 3-type structure. No superconducting transition was observed on the annealed samples for measurements down to 2.0 °K.
ISSN:0022-5088
DOI:10.1016/0022-5088(69)90039-3