Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays

A. Hirohata; S.M. Gardiner; J. Rothman; M. Klaui; L. Lopez-Diaz; Y. Chen; E. Cambril; F. Rousseaux; Y.B. Xu; M. Tselepi; J.A.C. Bland

doi:10.1109/20.951051

Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays

A. Hirohata, S.M. Gardiner, J. Rothman, M. Klaui, L. Lopez-Diaz, Y. Chen, E. Cambril, F. Rousseaux, Y.B. Xu, M. Tselepi, J.A.C. Bland

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

Abstract

The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE). The MFM images of the 1 µm diameter single domain dot arrays show direct evidence of strong interdot dipole coupling when the separation is reduced down to 0.1 µm. The coercivity of the dots is also found to be dependent on the separation, indicating the effect of the interdot dipole coupling on the magnetization reversal process.

Original language	English
Pages (from-to)	2055-2057
Number of pages	2
Journal	IEEE Transactions on Magnetics
Volume	37
Issue number	4 (Part 1)
DOIs	https://doi.org/10.1109/20.951051
Publication status	Published - Jul 2001

Bibliographical note

© 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

Keywords

Fe dot arrays
interdot coupling
magnetic storage media
micromagnetism

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http://dx.doi.org/10.1109/20.951051

Cite this

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title = "Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays",

abstract = "The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE). The MFM images of the 1 µm diameter single domain dot arrays show direct evidence of strong interdot dipole coupling when the separation is reduced down to 0.1 µm. The coercivity of the dots is also found to be dependent on the separation, indicating the effect of the interdot dipole coupling on the magnetization reversal process.",

keywords = "Fe dot arrays, interdot coupling, magnetic storage media, micromagnetism",

author = "A. Hirohata and S.M. Gardiner and J. Rothman and M. Klaui and L. Lopez-Diaz and Y. Chen and E. Cambril and F. Rousseaux and Y.B. Xu and M. Tselepi and J.A.C. Bland",

note = "{\textcopyright} 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.",

year = "2001",

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language = "English",

volume = "37",

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TY - JOUR

T1 - Effects of interdot dipole coupling in mesoscopic epitaxial Fe(100) dot arrays

AU - Hirohata, A.

AU - Gardiner, S.M.

AU - Rothman, J.

AU - Klaui, M.

AU - Lopez-Diaz, L.

AU - Chen, Y.

AU - Cambril, E.

AU - Rousseaux, F.

AU - Xu, Y.B.

AU - Tselepi, M.

AU - Bland, J.A.C.

N1 - © 2001 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

PY - 2001/7

Y1 - 2001/7

N2 - The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE). The MFM images of the 1 µm diameter single domain dot arrays show direct evidence of strong interdot dipole coupling when the separation is reduced down to 0.1 µm. The coercivity of the dots is also found to be dependent on the separation, indicating the effect of the interdot dipole coupling on the magnetization reversal process.

AB - The domain structure and the coercivity of epitaxial Fe(100) circular dot arrays of different diameters and separations have been studied using magnetic force microscopy (MFM) and focused magneto-optical Kerr effect (MOKE). The MFM images of the 1 µm diameter single domain dot arrays show direct evidence of strong interdot dipole coupling when the separation is reduced down to 0.1 µm. The coercivity of the dots is also found to be dependent on the separation, indicating the effect of the interdot dipole coupling on the magnetization reversal process.

KW - Fe dot arrays

KW - interdot coupling

KW - magnetic storage media

KW - micromagnetism

U2 - 10.1109/20.951051

DO - 10.1109/20.951051

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

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