INFLUENCE OF DEFECTS ON MAGNETIC CHARACTERISTICS OF FERRITE-GARNET FILMS

被引：4

作者：

Ivanova, A. I. ^{[1
]}

Semenova, E. M. ^{[2
]}

Dunaeva, G. G. ^{[3
]}

Ovcharenko, S., V ^{[4
]}

Tretyakov, S. A. ^{[1
]}

Zigert, A. D. ^{[1
]}

机构：

[1] Tver State Univ, Appl Phys Dept, Tver, Russia

[2] Tver State Univ, Condensed Matter Phys Dept, Tver, Russia

[3] Tver State Univ, Condensed Matter Phys Dept, Sci, Tver, Russia

[4] MIREA Russian Technol Univ, Dept Nanoelect, Moscow, Russia

来源：

PHYSICAL AND CHEMICAL ASPECTS OF THE STUDY OF CLUSTERS NANOSTRUCTURES AND NANOMATERIALS | 2020年 / 12期

关键词：

magnetic films; ferrite garnets; bulk defects; domain structure; coercivity; DOMAIN-STRUCTURE;

D O I：

10.26456/pcascnn/2020.12.103

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

This paper presents a study of the effect of volumetric (bulk) defects associated with the local mechanical damage and thermal laser action on the domain structure and magnetic characteristics of epitaxial bismuth-containing garnet-ferrite Bi : FG magnetic films. It was found that uniaxial Bi : FG films are resistant to bulk defects, the size of which does not exceed the width of the film domains. It is shown that the considered bulk film defects affect the process of the film magnetization, the form of the magnetization curves, the magnitude of the coercive force and the ratio of the displacement field to the coercive force. Effect of femtosecond laser pulses exposure with a power density of 800 J/cm(2) on the coercivity of film was found. The 4 -fold increase of the coercive field near a defect is discovered (from 0,33 Oe to 1,44 Oe).

引用

页码：103 / 112

页数：10

共 13 条

[1] EFFECTS OF STRESS ON MAGNETIZATION
ATHERTON, DL
JILES, DC
[J]. NDT INTERNATIONAL, 1986, 19 (01): : 15 - 19
[2] Features of the coercivity of strained epitaxial garnet ferrite films
Dubinko, SV
Nedviga, AS
Vishnevskii, VG
Shaposhnikov, AN
Yagupov, VS
Nesteruk, AG
Prokopov, AR
[J]. TECHNICAL PHYSICS LETTERS, 2005, 31 (11) : 979 - 981
[3] Dudorov V. N., 1977, Soviet Physics - Uspekhi, V20, P505, DOI 10.1070/PU1977v020n06ABEH005406
[4] DOMAIN STRUCTURE AND MAGNETIC TRANSPORT PROPERTIES ON THIN FERRITE-GARNET FILMS
Eguzhokova, R. M.
Ivanova, A. I.
Semenova, E. M.
[J]. PHYSICAL AND CHEMICAL ASPECTS OF THE STUDY OF CLUSTERS NANOSTRUCTURES AND NANOMATERIALS, 2019, (11) : 123 - 128
[5] Time evolution of domain-wall motion induced by nanosecond laser pulses
Gerasimov, M. V.
Logunov, M. V.
Spirin, A. V.
Nozdrin, Yu. N.
Tokman, I. D.
[J]. PHYSICAL REVIEW B, 2016, 94 (01)
[6] Magnetic imaging films
Grechishkin, Rostislav
Chigirinsiky, Sergey
Gusev, Mikhail
Cugat, Orphee
Dempsey, Nora M.
[J]. MAGNETIC NANOSTRUCTURES IN MODERN TECHNOLOGY: SPINTRONICS, MAGNETIC MEMS AND RECORDING, 2008, : 195 - +
[7] Specific features of magnetic domain structure in epitaxial magneto-optical ferrite-garnet films
Ivanova, A. I.
Semenova, E. M.
Virchenko, M. K.
[J]. FUNCTIONAL MATERIALS AND NANOTECHNOLOGIES (FM&NT 2018), 2019, 503
[8] METHOD OF ANALYSIS OF THE REVERSAL MAGNETIZATION PROCESSES USING MAGNETIC DOMAIN STRUCTURE IMAGES
Karpenkov, A. Yu
Dunaeva, G. G.
Rakunov, P. A.
Semenova, E. M.
[J]. PHYSICAL AND CHEMICAL ASPECTS OF THE STUDY OF CLUSTERS NANOSTRUCTURES AND NANOMATERIALS, 2018, (10) : 338 - 344
[9] A review of high magnetic moment thin films for microscale and nanotechnology applications
Scheunert, G.
Heinonen, O.
Hardeman, R.
Lapicki, A.
Gubbins, M.
Bowman, R. M.
[J]. APPLIED PHYSICS REVIEWS, 2016, 3 (01):
[10] Periodic arrays of micrometer and sub-micrometer magnetic structures prepared by nanoindentation of a nonmagnetic intermetallic compound
Sort, Jordi
Concustell, Amadeu
Menendez, Enric
Surinach, Santiago
Rao, K. V.
Deevi, Seetharama C.
Baro, Maria D.
Nogues, Josep
[J]. ADVANCED MATERIALS, 2006, 18 (13) : 1717 - +

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