Complex dynamics of magnetic-flux oscillations in bulk lead-doped lanthanum manganite / Nosov A. P.,Rinkevich A. B.,Ustinov V. V.,Vasil'ev V. G. // PHYSICS OF METALS AND METALLOGRAPHY. - 2009. - V. 107, l. 1. - P. 34-44.

ISSN/EISSN:

0031-918X / нет данных

Type:

Article

Abstract:

Magnetic-flux oscillations in a core made from lead-doped lanthanum manganite have been investigated. The core was located in crossed dc and radio-frequency ac magnetic fields. At a sufficiently large amplitude of the rf field, magnetic-flux jumps were observed and regions of ultrasharp oscillations of the magnetic flux appeared, which correspond to a bifurcation of a soft generation of a limit cycle. Flattened segments appeared in the oscillograms. The phenomena observed are qualitatively explained based on an analysis of processes of the dynamic magnetization reversal of the core along a minor hysteresis loop. The nonlinear phenomena, which indicate a complex dynamics of the magnetic-flux oscillations, exist in a moderately conducting ferromagnetic manganite only in a certain range of frequencies of the ac field, where the depth of a skin layer is comparable with the thickness of the core.

Author keywords:

COLOSSAL MAGNETORESISTANCE; IRREVERSIBLE RESPONSE; DC; PENETRATION; CERAMICS; FIELDS

DOI:

10.1134/S0031918X09010050

Web of Science ID:

ISI:000263181800005

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JAN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	COLOSSAL MAGNETORESISTANCE; IRREVERSIBLE RESPONSE; DC; PENETRATION; CERAMICS; FIELDS
Research-Areas	Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Nosov, Alexandr/A-3003-2013 Rinkevich, Anatoly/I-5296-2013 Ustinov, Vladimir/G-7501-2011
ORCID-Numbers	Nosov, Alexandr/0000-0003-1475-0059 Rinkevich, Anatoly/0000-0002-1277-384X Ustinov, Vladimir/0000-0002-5155-7947
Funding-Acknowledgement	Presidium of the Russian Academy of Sciences {[}NSh3257.2008.2]
Funding-Text	This work was supported in part by the ``Quantum Macrophysics{''} Program of the Presidium of the Russian Academy of Sciences and by the Grant NSh3257.2008.2.
Number-of-Cited-References	27
Journal-ISO	Phys. Metals Metallogr.
Doc-Delivery-Number	404VT