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Effect of pressure on superconductivity in the quaternary compounds RENi2B2C (RE=Lu, Y, Tm, Er, Ho)

✍ Scribed by H. Schmidt; H.F. Braun

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
450 KB
Volume
229
Category
Article
ISSN
0921-4534

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✦ Synopsis

The effect of hydrostatic pressure up to 15 kbar on the superconducting transition temperature T, is reported for five compounds in the quatemary system RENi,B& (RE=Y, Lu, Tm, Er, Ho). The compounds with RE=Y, Lu, Tm, Er display a modest linear variation of T, with pressure. The value of dT,/dp is ranging from -1.78 X lo-' K/bar up to + 1.88X 10e5 K/ bar. In contrast, for HoNi2B2C some kind of interplay between long-range magnetic order and superconductivity occurs, which is strongly modified under applied pressure.

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✍ B.H. Loo; N.P. Wang; H.D. Coble; T. Kato πŸ“‚ Article πŸ“… 1991 πŸ› Elsevier Science 🌐 English βš– 360 KB

We have investigated the Raman scattering in RE,BaCuO,, where RE=Y, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb and Lu, in the 50-1500 cm-' region. We have also recorded the electronic spectra of some of these RE,BaCuOS. From these studies, we concluded that the broad Raman band located at about 1100-I 177 cm-'