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On the nature of the dhcp to fcc transition under pressure in Pr and Pr-Th alloys
V Vijayakumar B K Godwal S K Sikka R Chidambaram
Condensed Matter Physics Volume 31 Issue 6 December 1988 pp 519-522
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https://www.ias.ac.in/article/fulltext/pram/031/06/0519-0522 -
Keywords
High pressure ;rare earth alloys ;phase transitions ;Praseodynium ;Praseodynium-thorium alloy -
Abstract
The results of electrical resistance (R), thermoelectric power (TEP) and X-ray diffraction measurements on praseodymium (Pr) and its alloys with thorium under pressure are reported. The maximum inR vsP curve exhibited by Pr persists only in the dhcp phase of PrTh alloy. X-ray measurements confirmed that in the alloys also the maximum inR vsP curve is due to the dhcp → fcc transition. Thus the behaviour of Pr and Pr-Th alloys is different from that of La and its alloys with Ce and Th where the maximum in theR vsP curve is electronic in origin and is exhibited by the dhcp, fcc and dist fcc phases.
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Author Affiliations
V Vijayakumar1 B K Godwal1 S K Sikka1 R Chidambaram1
- Neutron Physics Division, Bhabha Atomic Research Centre, Trombay, Bombay - 400 085, India
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Dates
- Published
- December 1988
- Manuscript received
- 5 July 1988
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Pramana – Journal of Physics
Volume 97, 2023
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