Magnetization reversal of ferromagnetic nanoparticles under inhomogeneous magnetic field

Joonyeon Chang; Hyunjung Yi; Hyun Cheol Koo; V. L. Mironov; B. A. Gribkov; A. A. Fraerman; S. A. Gusev; S. N. Vdovichev

doi:10.1016/j.jmmm.2006.07.015

Magnetization reversal of ferromagnetic nanoparticles under inhomogeneous magnetic field

Joonyeon Chang, Hyunjung Yi, Hyun Cheol Koo, V. L. Mironov, B. A. Gribkov, A. A. Fraerman, S. A. Gusev, S. N. Vdovichev

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

We investigated remagnetization processes in ferromagnetic nanoparticles under inhomogeneous magnetic field induced by the tip of magnetic force microscope (MFM) in both theoretical and empirical ways. Systematic MFM observations were carried out on arrays of submicron-sized elliptical ferromagnetic particles of Co and FeCr with different sizes and periods. It clearly reveals the distribution of remanent magnetization and processes of local remagnetization of individual ferromagnetic particles. Modeling of remagnetization processes in ferromagnetic nanoparticles under magnetic field induced by MFM probe was performed on the base of Landau-Lifshitz-Gilbert equation for magnetization. MFM-induced inhomogeneous magnetic field is very effective to control the magnetic state of individual ferromagnetic nanoparticles as well as to create different distribution of magnetic field in array of ferromagnetic nanoparticles.

Original language	English
Pages (from-to)	272-277
Number of pages	6
Journal	Journal of Magnetism and Magnetic Materials
Volume	309
Issue number	2
DOIs	https://doi.org/10.1016/j.jmmm.2006.07.015
Publication status	Published - 2007 Feb
Externally published	Yes

Keywords

Magnetic force microscopy
Magnetization reversal
Single magnetic domain
Vortex

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1016/j.jmmm.2006.07.015

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@article{1f2bb3971c0648b59c17b6a6036bcbef,

title = "Magnetization reversal of ferromagnetic nanoparticles under inhomogeneous magnetic field",

abstract = "We investigated remagnetization processes in ferromagnetic nanoparticles under inhomogeneous magnetic field induced by the tip of magnetic force microscope (MFM) in both theoretical and empirical ways. Systematic MFM observations were carried out on arrays of submicron-sized elliptical ferromagnetic particles of Co and FeCr with different sizes and periods. It clearly reveals the distribution of remanent magnetization and processes of local remagnetization of individual ferromagnetic particles. Modeling of remagnetization processes in ferromagnetic nanoparticles under magnetic field induced by MFM probe was performed on the base of Landau-Lifshitz-Gilbert equation for magnetization. MFM-induced inhomogeneous magnetic field is very effective to control the magnetic state of individual ferromagnetic nanoparticles as well as to create different distribution of magnetic field in array of ferromagnetic nanoparticles.",

keywords = "Magnetic force microscopy, Magnetization reversal, Single magnetic domain, Vortex",

author = "Joonyeon Chang and Hyunjung Yi and {Cheol Koo}, Hyun and Mironov, {V. L.} and Gribkov, {B. A.} and Fraerman, {A. A.} and Gusev, {S. A.} and Vdovichev, {S. N.}",

note = "Funding Information: This work was partly supported by Korea–Russia International Cooperation Program in KIST (2Z02660), RFBR, INTAS (03-51-6426, 03-51-4778), and ISTC (2976). The authors are very thankful to V.B. Shevtsov for help in MFM measurements, to N.I. Polushkin, YUKVerevkin for assistance in sample fabrication and to D.S. Nikitushkin, I.R. Karetnikova, I.M. Nefedov and I.A. Shereshevsky for assistance in computer simulations.",

year = "2007",

month = feb,

doi = "10.1016/j.jmmm.2006.07.015",

language = "English",

volume = "309",

pages = "272--277",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

publisher = "Elsevier",

number = "2",

}

TY - JOUR

T1 - Magnetization reversal of ferromagnetic nanoparticles under inhomogeneous magnetic field

AU - Chang, Joonyeon

AU - Yi, Hyunjung

AU - Cheol Koo, Hyun

AU - Mironov, V. L.

AU - Gribkov, B. A.

AU - Fraerman, A. A.

AU - Gusev, S. A.

AU - Vdovichev, S. N.

N1 - Funding Information: This work was partly supported by Korea–Russia International Cooperation Program in KIST (2Z02660), RFBR, INTAS (03-51-6426, 03-51-4778), and ISTC (2976). The authors are very thankful to V.B. Shevtsov for help in MFM measurements, to N.I. Polushkin, YUKVerevkin for assistance in sample fabrication and to D.S. Nikitushkin, I.R. Karetnikova, I.M. Nefedov and I.A. Shereshevsky for assistance in computer simulations.

PY - 2007/2

Y1 - 2007/2

N2 - We investigated remagnetization processes in ferromagnetic nanoparticles under inhomogeneous magnetic field induced by the tip of magnetic force microscope (MFM) in both theoretical and empirical ways. Systematic MFM observations were carried out on arrays of submicron-sized elliptical ferromagnetic particles of Co and FeCr with different sizes and periods. It clearly reveals the distribution of remanent magnetization and processes of local remagnetization of individual ferromagnetic particles. Modeling of remagnetization processes in ferromagnetic nanoparticles under magnetic field induced by MFM probe was performed on the base of Landau-Lifshitz-Gilbert equation for magnetization. MFM-induced inhomogeneous magnetic field is very effective to control the magnetic state of individual ferromagnetic nanoparticles as well as to create different distribution of magnetic field in array of ferromagnetic nanoparticles.

AB - We investigated remagnetization processes in ferromagnetic nanoparticles under inhomogeneous magnetic field induced by the tip of magnetic force microscope (MFM) in both theoretical and empirical ways. Systematic MFM observations were carried out on arrays of submicron-sized elliptical ferromagnetic particles of Co and FeCr with different sizes and periods. It clearly reveals the distribution of remanent magnetization and processes of local remagnetization of individual ferromagnetic particles. Modeling of remagnetization processes in ferromagnetic nanoparticles under magnetic field induced by MFM probe was performed on the base of Landau-Lifshitz-Gilbert equation for magnetization. MFM-induced inhomogeneous magnetic field is very effective to control the magnetic state of individual ferromagnetic nanoparticles as well as to create different distribution of magnetic field in array of ferromagnetic nanoparticles.

KW - Magnetic force microscopy

KW - Magnetization reversal

KW - Single magnetic domain

KW - Vortex

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DO - 10.1016/j.jmmm.2006.07.015

M3 - Article

AN - SCOPUS:33750508521

SN - 0304-8853

VL - 309

SP - 272

EP - 277

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

IS - 2

ER -

Magnetization reversal of ferromagnetic nanoparticles under inhomogeneous magnetic field

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Keywords

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