Electronic Structure and Spin-Fluctuation Effects in the Normal Phase PuCoGa5 / Povzner A. A.,Volkov A. G.,Kabirova L. R. // JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM. - 2013. - V. 26, l. 5, SI. - P. 1653-1656.

ISSN/EISSN:

1557-1939 / нет данных

Type:

Article

Abstract:

In the self-consistent scheme based on combining ab initio (LDA + U + SO)-calculation of the electron spectrum and the spin-fluctuation theory, we investigate features of the electron structure and magnetic susceptibility PuCoGa5. It is shown that, along with the contribution of the spin magnetic moments, is a significant orbital contribution to magnetic susceptibility. The main contribution to the formation of dependency chi(T) is made, the fluctuations of the spin density (FSD) of the f-electrons. The singlet doubling of electrons through the exchange of paramagnons investigated in this scheme, also. It is shown that in the f-electron is doubling cannot take place because of the saturation amplitude of the fluctuations of their spin density. Doubling of d-electrons due to exchange paramagnons is possibly since mode-mode coupling constant of FSD this electron subsystem-negative.

Author keywords:

Fluctuations of the spin density; Superconductor; Paramagnon doubling METALS; PLUTONIUM

DOI:

10.1007/s10948-012-2076-1

Web of Science ID:

ISI:000323906600045

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Keywords-Plus	METALS; PLUTONIUM
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied; Physics, Condensed Matter
Author-Email	a.a.povzner@ustu.ru agvolkov@yandex.ru
ResearcherID-Numbers	Volkov, Arkadij/A-1980-2016 Povzner, Aleksandr/A-4625-2016
ORCID-Numbers	Volkov, Arkadij/0000-0002-6698-0238
Funding-Acknowledgement	Ministery of education and science of Russian Federation {[}14.A18.21.0737]
Funding-Text	The study was supported by Ministery of education and science of Russian Federation, project 14.A18.21.0737.
Number-of-Cited-References	10
Usage-Count-Since-2013	12
Journal-ISO	J. Supercond. Nov. Magn
Doc-Delivery-Number	211KS