Simulation studies of domain wall width changes in various nanoconstriction shapes

Se Dong Kim; Bvong Sun Chun; Deok Kee Kim; Young Keun Kim

doi:10.1109/TMAG.2006.879729

Simulation studies of domain wall width changes in various nanoconstriction shapes

Se Dong Kim, Bvong Sun Chun, Deok Kee Kim, Young Keun Kim

Department of Materials Science and Engineering

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

1 Citation (Scopus)

Abstract

In magnetic nanoconstriction systems, the magnetic calculations on the domain wall width (DWW) were carried out using the micromagnetics simulation based on Landau-Lifschitz-Gilbert equation. The results for the normal constriction type and the newly designed round constriction type were compared. DWW changes in various nanoconstriction sizes and shapes were studied while domain walls were constricted at the nanoconstriction. Calculations showed that the domain wall (DW) configurations in the normal constriction type were unstable depending on the initial state, whereas the domain wall configurations were stable in the round constriction type independent of the initial state. The stable DW configuration in the round constriction type seems to be due to the same spatial gradient across the structure.

Original language	English
Pages (from-to)	2621-2623
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	42
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2006.879729
Publication status	Published - 2006 Oct

Keywords

Domain wall width (DWW)
magnetic nanoconstriction
micromagnetic simulation
round constriction

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2006.879729

Cite this

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title = "Simulation studies of domain wall width changes in various nanoconstriction shapes",

abstract = "In magnetic nanoconstriction systems, the magnetic calculations on the domain wall width (DWW) were carried out using the micromagnetics simulation based on Landau-Lifschitz-Gilbert equation. The results for the normal constriction type and the newly designed round constriction type were compared. DWW changes in various nanoconstriction sizes and shapes were studied while domain walls were constricted at the nanoconstriction. Calculations showed that the domain wall (DW) configurations in the normal constriction type were unstable depending on the initial state, whereas the domain wall configurations were stable in the round constriction type independent of the initial state. The stable DW configuration in the round constriction type seems to be due to the same spatial gradient across the structure.",

keywords = "Domain wall width (DWW), magnetic nanoconstriction, micromagnetic simulation, round constriction",

author = "Kim, {Se Dong} and Chun, {Bvong Sun} and Kim, {Deok Kee} and Kim, {Young Keun}",

note = "Funding Information: This work was supported by Grant M10500000105-05J0000-10510 from the National Research Laboratory Program of the Korea Science and Engineering Foundation and by Grant M60501000045-05A0100-04510 from the Korea Science and Engineering Foundation.",

year = "2006",

month = oct,

doi = "10.1109/TMAG.2006.879729",

language = "English",

volume = "42",

pages = "2621--2623",

journal = "IEEE Transactions on Magnetics",

issn = "0018-9464",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

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AU - Kim, Se Dong

AU - Chun, Bvong Sun

AU - Kim, Deok Kee

AU - Kim, Young Keun

N1 - Funding Information: This work was supported by Grant M10500000105-05J0000-10510 from the National Research Laboratory Program of the Korea Science and Engineering Foundation and by Grant M60501000045-05A0100-04510 from the Korea Science and Engineering Foundation.

PY - 2006/10

Y1 - 2006/10

N2 - In magnetic nanoconstriction systems, the magnetic calculations on the domain wall width (DWW) were carried out using the micromagnetics simulation based on Landau-Lifschitz-Gilbert equation. The results for the normal constriction type and the newly designed round constriction type were compared. DWW changes in various nanoconstriction sizes and shapes were studied while domain walls were constricted at the nanoconstriction. Calculations showed that the domain wall (DW) configurations in the normal constriction type were unstable depending on the initial state, whereas the domain wall configurations were stable in the round constriction type independent of the initial state. The stable DW configuration in the round constriction type seems to be due to the same spatial gradient across the structure.

AB - In magnetic nanoconstriction systems, the magnetic calculations on the domain wall width (DWW) were carried out using the micromagnetics simulation based on Landau-Lifschitz-Gilbert equation. The results for the normal constriction type and the newly designed round constriction type were compared. DWW changes in various nanoconstriction sizes and shapes were studied while domain walls were constricted at the nanoconstriction. Calculations showed that the domain wall (DW) configurations in the normal constriction type were unstable depending on the initial state, whereas the domain wall configurations were stable in the round constriction type independent of the initial state. The stable DW configuration in the round constriction type seems to be due to the same spatial gradient across the structure.

KW - Domain wall width (DWW)

KW - magnetic nanoconstriction

KW - micromagnetic simulation

KW - round constriction

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DO - 10.1109/TMAG.2006.879729

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

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ER -

Simulation studies of domain wall width changes in various nanoconstriction shapes

Abstract

Keywords

ASJC Scopus subject areas

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