Hybridisation features of the electronic structure and paramagnon mechanism of superconductivity / Volkov A. G.,Povzner A. A. // MATERIALS RESEARCH INNOVATIONS. - 2015. - V. 19, l. 3. - P. S315-S319.

ISSN/EISSN:

1432-8917 / 1433-075X

Type:

Article

Abstract:

Important feature of the electronic structure of strongly correlated superconducting compounds of transition and rare earth metals (e.g. lanthanum cuprate) because of the effects pd-hybridisation. Within the framework, the periodic pd-model Anderson has been shown the possibility of appearance partially filled narrow band of heavy fermions on the edge or inside the hybridisation gap. The authors calculated the magnetic susceptibility, spin-spin correlator for different values of the Hubbard interaction and the number of electrons. It was found that the decrease of the Hubbard interaction constants (value pd-hybridisation is constant) leads to negative values of mode-mode coupling constants and the possibility of Cooper doubling through exchange paramagnons with d-symmetric order parameter.

Author keywords:

Pd-hybridisation; Strongly correlated system; Spin-fluctuation; Superconductivity

DOI:

10.1179/1432891715Z.0000000001

Web of Science ID:

ISI:000355260100004

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAY
Publisher	MANEY PUBLISHING
Address	STE 1C, JOSEPHS WELL, HANOVER WALK, LEEDS LS3 1AB, W YORKS, ENGLAND
Language	English
EISSN	1433-075X
Research-Areas	Materials Science
Web-of-Science-Categories	Materials Science, Multidisciplinary
Author-Email	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	Ministry of Education and Science of the Russian Federation {[}3.1236.2014/K]
Funding-Text	This research was supported by the project 3.1236.2014/K Ministry of Education and Science of the Russian Federation.
Number-of-Cited-References	4
Usage-Count-Since-2013	6
Journal-ISO	Mater. Res. Innov.
Doc-Delivery-Number	CJ1QW