Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9841537 | Physica C: Superconductivity and its Applications | 2005 | 13 Pages |
Abstract
We have synthesized bulk Mg(B1âxCx)2 from a mixture of elemental Mg, B, and the binary compound B4C. Carbon incorporation was dramatically improved by a two step reaction process at an elevated temperature of 1200 °C. This reaction process results in a solubility limit near x â¼Â 0.07. We found that impurities in the starting B cause an additive suppression of Tc. We combine these data with Tc and Hc2(T = 0) data from CVD wires as well as plasma spray synthesized powders and present a unifying Hc2 and Tc versus x plot.
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Authors
R.H.T. Wilke, S.L. Bud'ko, P.C. Canfield, D.K. Finnemore, S.T. Hannahs,