Micromagnetic Structures near a Second Order Phase Transition in Monocrystalline Ferrite Garnet Plates / Pamyatnykh L. A.,Belskii I. E.,Shmatov G. A. // ACTA PHYSICA POLONICA A. - 2015. - V. 127, l. 2. - P. 421-423.

ISSN/EISSN:

0587-4246 / 1898-794X

Type:

Article; Proceedings Paper

Abstract:

The main parameters of micromagnetic structure formation in a vicinity of a second order phase transition were determined experimentally and theoretically. The theoretical study was performed using micromagnetic approach. External magnetic field H-c of appearance of micromagnetic structure and micromagnetic structure period L-c were determined for (001)-oriented plate with uniaxial K-u and cubic K-1 magnetic anisotropy. The plate was saturated by the field applied in its plane. In the model we assumed that magnetization vector undergoes small deviations from equilibrium if magnetic field is slightly reduced. These deviations are periodic in nature: micromagnetic structure has a form of a plane wave. Dependences of H-c and L-c on an azimuthal angle of external magnetic field and on anisotropy constants K-u and K-1 were derived analytically in this work. Experimental studies of micromagnetic structure near the second order phase transition were conducted on (EuEr)(3)(FeGa)(5)O-12 (001)-oriented 50 mu m thick ferrite-garnet plate with K-u = 5700 erg/cm(3) and K-1 = -3700 erg/cm(3). Micromagnetic structure was revealed by means of magnetooptic Faraday effect. The in-plane field was increased up to 2000 Oe. Experimentally determined values of H-c and L-c were compared with theoretical estimates.

Author keywords:

нет данных

DOI:

нет данных

Web of Science ID:

ISI:000352139600086

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	FEB
Note	14th European Conference on Physics of Magnetism (PM), Poznan, POLAND, JUN 23-27, 2014
Organization	Polish Acad Sci, Inst Mol Phys; Adam Mickiewicz Univ, Fac Phys
Publisher	POLISH ACAD SCIENCES INST PHYSICS
Address	AL LOTNIKOW 32-46, PL-02-668 WARSAW, POLAND
Language	English
EISSN	1898-794X
Research-Areas	Physics
Web-of-Science-Categories	Physics, Multidisciplinary
Author-Email	Lidia.Pamyatnykh@urfu.ru
ResearcherID-Numbers	Pamyatnykh, Lidia/C-7780-2017
ORCID-Numbers	Pamyatnykh, Lidia/0000-0001-5044-0838
Number-of-Cited-References	4
Usage-Count-Since-2013	3
Journal-ISO	Acta Phys. Pol. A
Doc-Delivery-Number	CE9BY