Numerical simulation of the lattice properties of Fe1-xCoxSi - strongly correlated electron systems / Povzner A. A.,Filanovich A. N.,Nogovitsyna T. A. // PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS. - 2017. - V. 254, l. 9.

ISSN/EISSN:

0370-1972 / 1521-3951

Type:

Article

Abstract:

Within the framework of a thermodynamic model, the phonon anharmonicity associated with both acoustic and optical vibrations of the crystal lattice is investigated. On this basis we have performed self-consistent simulations of thermal and elastic properties of FeSi and CoSi compounds and their solid solutions Fe1-xCoxSi (x = 0.1, 0.3, 0.5), which are promising spintronic materials. The non-lattice contributions to the heat capacity and coefficient of thermal expansion of the considered systems have been established. It is shown that the Invar effect observed in Fe0.7Co0.3Si and Fe0.5Co0.5Si is associated with anomalies of their electronic and magnetic subsystems. (C) 2017 WILEY-VCH Verlag GmbH \& Co. KGaA, Weinheim

Author keywords:

Fe1-xCoxSi; phonon anharmonicity; strongly correlated electron systems; thermodynamic modeling; thermodynamic properties; transition metal silicides ITINERANT MAGNETISM; THERMAL-EXPANSION; SOLID-SOLUTIONS; ANHARMONICITY; PHONON; FESI

DOI:

10.1002/pssb.201700034

Web of Science ID:

ISI:000410648500013

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Publisher	WILEY-V C H VERLAG GMBH
Address	POSTFACH 101161, 69451 WEINHEIM, GERMANY
Language	English
Article-Number	1700034
EISSN	1521-3951
Keywords-Plus	ITINERANT MAGNETISM; THERMAL-EXPANSION; SOLID-SOLUTIONS; ANHARMONICITY; PHONON; FESI
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	a.n.filanovich@urfu.ru
ResearcherID-Numbers	Povzner, Aleksandr/A-4625-2016
Funding-Acknowledgement	Ministry of Education and Science of Russian Federation {[}3.9521.2017]
Funding-Text	The results were obtained in the framework of the task of The Ministry of Education and Science of Russian Federation, contract 3.9521.2017/sic.
Number-of-Cited-References	29
Usage-Count-Last-180-days	4
Usage-Count-Since-2013	4
Journal-ISO	Phys. Status Solidi B-Basic Solid State Phys.
Doc-Delivery-Number	FG8AS