Penetration of high-frequency electromagnetic field through bulk samples of La1-xSrxMnO3 (0.33 <= x <= 0.60) manganites / Nosov A. P.,Rinkevich A. B.,Vasil'ev V. G.,Vladimirova E. V. // PHYSICS OF METALS AND METALLOGRAPHY. - 2008. - V. 106, l. 1. - P. 34-42.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

Penetration of radio-frequency electromagnetic field through bulk samples of La1-x Sr (x) MnO3 (0.33 <= x <= 0.60) manganites has been studied in the frequency range from 20 kHz to 30 MHz at temperatures from 300 to 400 K, which includes the temperature of the magnetic phase transition of some investigated compositions. It has been shown that, in spite of the differences in the static properties, the dynamic properties of the investigated compositions of these manganites are similar; the differences are mainly pronounced at frequencies higher than 1 MHz. In the ferromagnetic range, significant changes in the transmission coefficient have been observed for all compositions upon magnetization. The magnitudes of the initial dynamic magnetic permeability have been estimated. The changes in the transmission coefficient in the ferromagnetic region are mainly caused by changes in the dynamic magnetic permeability rather than by magnetoresistance. It is shown that in the paramagnetic temperature range the magnitude of the dynamic reversible permeability exceeds unity for all compositions, which supports the assumption on the retention of local magnetic ordering.

Author keywords:

MAGNETORESISTANCE MANGANITES; GIANT MAGNETORESISTANCE; LANTHANUM MANGANITES; SURFACE-RESISTANCE; TEMPERATURE; TRANSITION

DOI:

10.1134/S0031918X08070053

Web of Science ID:

ISI:000257780900005

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUL
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	MAGNETORESISTANCE MANGANITES; GIANT MAGNETORESISTANCE; LANTHANUM MANGANITES; SURFACE-RESISTANCE; TEMPERATURE; TRANSITION
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Nosov, Alexandr/A-3003-2013 Rinkevich, Anatoly/I-5296-2013
ORCID-Numbers	Nosov, Alexandr/0000-0003-1475-0059 Rinkevich, Anatoly/0000-0002-1277-384X
Number-of-Cited-References	26
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	328EP