Magnetic Susceptibility and Features of Electronic Structure PuRhGa5 / Povzner A. A.,Volkov A. G.,Golubeva L. R. // JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM. - 2014. - V. 27, l. 10. - P. 2347-2351.

ISSN/EISSN:

1557-1939 / 1557-1947

Type:

Article

Abstract:

The electronic structure of the PuRhGa5 compound has been investigated within the framework of the spin-fluctuation theory and the LDA+U+SO calculations (by means of LAPW basis). The parameter values of electron-electron interactions were determined from the best agreement between the experimental data and the temperature dependence of the magnetic susceptibility calculated by means of obtained electron spectra. It was shown that owing to fd-transitions, the magnitude of exchange (Hund) interaction increases as compared with PuCoGa5 compound and that the partially filled f-peak is formed in the overlapping area of the 5/2 and 7/2 f-multiplets. This results in ferromagnetic instability of the paramagnetic ground state of PuRhGa5 compound, which persists up to the superconducting transition temperature. With increase in temperature the spin stiffness coefficient changes the sign from negative to positive that results in the stable paramagnetic state of PuRhGa5 compound.

Author keywords:

Electronic structure; Spin fluctuations; Magnetic susceptibility SUPERCONDUCTIVITY; PUCOGA5

DOI:

10.1007/s10948-014-2600-6

Web of Science ID:

ISI:000343162400024

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
EISSN	1557-1947
Keywords-Plus	SUPERCONDUCTIVITY; PUCOGA5
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied; Physics, Condensed Matter
Author-Email	l.r.golubeva@urfu.ru
ResearcherID-Numbers	Povzner, Aleksandr/A-4625-2016 Volkov, Arkadij/A-1980-2016
ORCID-Numbers	Volkov, Arkadij/0000-0002-6698-0238
Funding-Acknowledgement	Ministry of education and science of Russian Federation
Funding-Text	This study was partially supported by the project of the Ministry of education and science of Russian Federation.
Number-of-Cited-References	13
Usage-Count-Since-2013	3
Journal-ISO	J. Supercond. Nov. Magn
Doc-Delivery-Number	AQ9HV