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VOLUME 73 (2001) | ISSUE 2 | PAGE 80

Enhanced superconductivity of the Ti - Zr alloys in the high-pressure BCC phase
PACS: 64.70.Kb, 74.62.-c
Abstract
A high-pressure study of the crystal structure and superconductivity of Ti - Zr alloys demonstrates an increase of the ω - β transition pressure from about 30 to 43-57 GPa when the titanium content in the alloys increases from 0 to 50 at.%. The isobaric values of the BCC β- phase superconducting temperature (at 46 GPa) increase from 5.7 to more than 15 K between 0 and 50 at.% Ti, the latter value being the absolute maximum for BCC d- metal alloys. These data correlate with the earlier assumption of an s-d electron transfer in Zr under pressure.