High pressure study of Pu(0.92)Am(0.08) binary alloy

High pressure study of Pu(0.92)Am(0.08) binary alloy

The phase transitions (by means of x-ray diffraction) and electrical resistivity of a Pu(0.92)Am(0.08) binary alloy were determined under pressure (up to 2 GPa). The evolution of atomic volume with pressure gives detailed information concerning the degree of localization of 5f electronic states and...

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Veröffentlicht in:Journal of physics. Condensed matter 2008-07, Vol.20 (27), p.275217-275217
Hauptverfasser: Klosek, V, Griveau, J C, Faure, P, Genestier, C, Baclet, N, Wastin, F
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container_title Journal of physics. Condensed matter
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creator Klosek, V
Griveau, J C
Faure, P
Genestier, C
Baclet, N
Wastin, F
description The phase transitions (by means of x-ray diffraction) and electrical resistivity of a Pu(0.92)Am(0.08) binary alloy were determined under pressure (up to 2 GPa). The evolution of atomic volume with pressure gives detailed information concerning the degree of localization of 5f electronic states and their delocalization process. A quasi-linear V = f(P) dependence reflects subtle modifications of the electronic structure when P increases. The electrical resistivity measurements reveal the very high stability of the δ phase for pressures less than 0.7 GPa, since no martensitic-like transformation occurs at low temperature. Remarkable electronic behaviours have also been observed. Finally, resistivity curves have shown the temperature dependence of the phase transformations together with unexpected kinetic effects.
doi_str_mv 10.1088/0953-8984/20/27/275217
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title High pressure study of Pu(0.92)Am(0.08) binary alloy
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