Thermodynamic grounds for the Invar and Ellinvar effects in ferromagnets / Bodryakov VY,Povzner AA // TECHNICAL PHYSICS. - 2004. - V. 49, l. 2. - P. 207-213.

ISSN/EISSN:

1063-7842 / нет данных

Type:

Article

Abstract:

In terms of the standard thermodynamic approach (the Debye-Gruneisen model of solid and the Landau theory of second-order phase transitions), approximate conditions providing the constancy of the volumetric thermal expansion coefficient (the Invar effect) and of the bulk modulus (the Ellinvar effect) of a ferromagnet are established. Conditions under which a ferromagnet may exhibit Invar and Ellinvar properties simultaneously are found. Interaction between the magnetic, phonon, and electron subsystems of a ferromagnet is shown to be a crucial factor in the occurrence of the Invar and Ellinvar effects. (C) 2004 MAIK ``Nauka/Interperiodica{''}.

Author keywords:

ELASTIC-MODULI; GADOLINIUM

DOI:

10.1134/1.1648957

Web of Science ID:

ISI:000188881600010

Соавторы в МНС:

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Другие поля

Поле	Значение
Publisher	AMER INST PHYSICS
Address	CIRCULATION \& FULFILLMENT DIV, 2 HUNTINGTON QUADRANGLE, STE 1 N O 1, MELVILLE, NY 11747-4501 USA
Language	English
Keywords-Plus	ELASTIC-MODULI; GADOLINIUM
Research-Areas	Physics
Web-of-Science-Categories	Physics, Applied
Author-Email	povz@kf.ustu.ru
ResearcherID-Numbers	Povzner, Aleksandr/A-4625-2016
Number-of-Cited-References	21
Usage-Count-Since-2013	1
Journal-ISO	Tech. Phys.
Doc-Delivery-Number	773DC