Calculation of temperature dependence of electrical resistivity in the transuranium metals and their alloys / Tsiovkin Yu. Yu.,Korotin M. A.,Shorikov A. O.,Anisimov V. I.,Voloshinskii A. N.,Lukoyanov A. V.,Koneva E. S.,Povzner A. A.,Surin M. A. // PHYSICAL REVIEW B. - 2007. - V. 76, l. 7.

ISSN/EISSN:

1098-0121 / 1550-235X

Type:

Article

Abstract:

The temperature dependence of electrical resistivity (ER) in fcc transuranium metals-plutonium, americium, and curium and some plutonium-based dilute alloys-has been considered within the Mott two-band conductivity model. It has been shown that the physical origin of the experimentally obtained temperature dependence of ER, including negative temperature coefficient of resistivity (TCR), is an ordinary electron-phonon interaction and its interference with electron-impurity interaction in the case of dilute alloys. A simple criterion of the negative TCR at high temperatures (T>theta(D)) was formulated and applied to explain qualitatively the experimental TCR data in Pu-based dilute alloys. To make numerical evaluation of ER of pure metals and their alloys at high temperature, the coherent potential approach for the Mott two-band conductivity model was combined with ab initio obtained fcc Pu, Am, and Cm densities of states as the starting point in the iteration procedure. The fcc curium LDA+U+SO density of states was reported and discussed in detail. The results of the ER theoretical investigations were compared with available experimental data.

Author keywords:

DELTA-PU; MAGNETIC-PROPERTIES; PLUTONIUM; ELECTRONS

DOI:

10.1103/PhysRevB.76.075119

Web of Science ID:

ISI:000249155300056

Соавторы в МНС:

Другие поля

Поле	Значение
Month	AUG
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	075119
EISSN	1550-235X
Keywords-Plus	DELTA-PU; MAGNETIC-PROPERTIES; PLUTONIUM; ELECTRONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Povzner, Aleksandr/A-4625-2016 Anisimov, Vladimir/K-1235-2013 Lukoyanov, Alexey/J-8069-2013 Korotin, Michael/J-3252-2013 Shorikov, Alexey/J-3551-2013
ORCID-Numbers	Anisimov, Vladimir/0000-0002-1087-1956 Lukoyanov, Alexey/0000-0003-4459-0893 Korotin, Michael/0000-0002-9603-8374 Shorikov, Alexey/0000-0001-7607-6130
Number-of-Cited-References	56
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	10
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	206AC