Temperature and concentration dependences of the electrical resistivity for alloys of plutonium with americium under normal conditions / Tsiovkin Yu. Yu.,Povzner A. A.,Tsiovkina L. Yu.,Dremov V. V.,Kabirova L. R.,Dyachenko A. A.,Bystrushkin V. B.,Ryabukhina M. V.,Lukoyanov A. V.,Shorikov A. O. // JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS. - 2010. - V. 111, l. 6. - P. 1019-1027.

ISSN/EISSN:

1063-7761 / 1090-6509

Type:

Article

Abstract:

The temperature and concentration dependences of the electrical resistivity for alloys of americium with plutonium are analyzed in terms of the multiband conductivity model for binary disordered substitution-type alloys. For the case of high temperatures (T > I similar to(D), I similar to(D) is the Debye temperature), a system of self-consistent equations of the coherent potential approximation has been derived for the scattering of conduction electrons by impurities and phonons without any constraints on the interaction intensity. The definitions of the shift and broadening operator for a single-electron level are used to show qualitatively and quantitatively that the pattern of the temperature dependence of the electrical resistivity for alloys is determined by the balance between the coherent and incoherent contributions to the electron-phonon scattering and that the interference conduction electron scattering mechanism can be the main cause of the negative temperature coefficient of resistivity observed in some alloys involving actinides. It is shown that the great values of the observed resistivity may be attributable to interband transitions of charge carriers and renormalization of their effective mass through strong s-d band hybridization. The concentration and temperature dependences of the resistivity for alloys of plutonium and americium calculated in terms of the derived conductivity model are compared with the available experimental data.

Author keywords:

DELTA-PLUTONIUM; MAGNETIC-PROPERTIES; METALS; ELECTRONS; PU; PRESSURE; VALENCE

DOI:

10.1134/S1063776110120150

Web of Science ID:

ISI:000286338400015

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6509
Keywords-Plus	DELTA-PLUTONIUM; MAGNETIC-PROPERTIES; METALS; ELECTRONS; PU; PRESSURE; VALENCE
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	y.tsiovkin@mail.ustu.ru
ResearcherID-Numbers	Shorikov, Alexey/J-3551-2013 Povzner, Aleksandr/A-4625-2016 Lukoyanov, Alexey/J-8069-2013 Tsiovkina, Ludmila/M-6739-2016 Dyachenko, Alexey/K-1179-2013
ORCID-Numbers	Shorikov, Alexey/0000-0001-7607-6130 Lukoyanov, Alexey/0000-0003-4459-0893 Dyachenko, Alexey/0000-0001-9934-4193
Funding-Acknowledgement	``Scientific and Scientific - Pedagogical Personnel of Innovational Russia{''} Federal Goal-Oriented Program {[}02.740.11.0217]; ``Development of Scientific Potential of the Higher School{''} Program {[}2.1.1/779]; State Program {[}NK 529P]; Russian Foundation for Basic Research {[}09-02-00431, 10-02-00046, 10-02-00546]
Funding-Text	This work was supported by the ``Scientific and Scientific - Pedagogical Personnel of Innovational Russia{''} Federal Goal-Oriented Program for 2009-2013 (project no. 02.740.11.0217), the ``Development of Scientific Potential of the Higher School in 2009-2010{''} Program (project 2.1.1/779), the State Program NK 529P, and the Russian Foundation for Basic Research (project nos. 09-02-00431, 10-02-00046, and 10-02-00546).
Number-of-Cited-References	34
Usage-Count-Since-2013	8
Journal-ISO	J. Exp. Theor. Phys.
Doc-Delivery-Number	708CE