Localized magnetic fields in arbitrary directions using patterned nanomagnets

Robert P G McNeil; Jeff Schneble; Masaya Kataoka; Christopher J. B. Ford; Takeshi Kasama; Rafal E. Dunin-Borkowski; Joshua M. Feinberg; Richard J. Harrison; Crispin H. W. Barnes; Desmond H. Y. Tse; Theodossis Trypiniotis; J. Anthony C. Bland; David Anderson; Geb A. C. Jones; Michael Pepper

doi:10.1021/nl902949v

Localized magnetic fields in arbitrary directions using patterned nanomagnets

Robert P G McNeil, Jeff Schneble, Masaya Kataoka, Christopher J. B. Ford, Takeshi Kasama, Rafal E. Dunin-Borkowski, Joshua M. Feinberg, Richard J. Harrison, Crispin H. W. Barnes, Desmond H. Y. Tse, Theodossis Trypiniotis, J. Anthony C. Bland, David Anderson, Geb A. C. Jones, Michael Pepper

University of Cambridge

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Control of the local magnetic fields desirable for spintronics and quantum information technology is not well developed. Existing methods produce either moderately small local fields or one held orientation. We present designs of patterned magnetic elements that produce remanent fields of 50 mT (potentially 200 Rif) confined to chosen, submicrometer regions in directions perpendicular to an external initializing field. A wide variety of magnetic-field profiles on nanorneter scales can be produced with the option of applying electric fields, for example, to move a quantum clot between regions where the magnetic-field direction or strength is different. We have confirmed our modeling by measuring the fields in one design using electron holography.

Original language	English
Journal	Nano Letters
Volume	10
Issue number	5
Pages (from-to)	1549-1553
ISSN	1530-6984
DOIs	https://doi.org/10.1021/nl902949v
Publication status	Published - 2010

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McNeil, R. P. G., Schneble, J., Kataoka, M., Ford, C. J. B., Kasama, T., Dunin-Borkowski, R. E., Feinberg, J. M., Harrison, R. J., Barnes, C. H. W., Tse, D. H. Y., Trypiniotis, T., Bland, J. A. C., Anderson, D., Jones, G. A. C., & Pepper, M. (2010). Localized magnetic fields in arbitrary directions using patterned nanomagnets. Nano Letters, 10(5), 1549-1553. https://doi.org/10.1021/nl902949v

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title = "Localized magnetic fields in arbitrary directions using patterned nanomagnets",

abstract = "Control of the local magnetic fields desirable for spintronics and quantum information technology is not well developed. Existing methods produce either moderately small local fields or one held orientation. We present designs of patterned magnetic elements that produce remanent fields of 50 mT (potentially 200 Rif) confined to chosen, submicrometer regions in directions perpendicular to an external initializing field. A wide variety of magnetic-field profiles on nanorneter scales can be produced with the option of applying electric fields, for example, to move a quantum clot between regions where the magnetic-field direction or strength is different. We have confirmed our modeling by measuring the fields in one design using electron holography.",

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year = "2010",

doi = "10.1021/nl902949v",

language = "English",

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journal = "Nano Letters",

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T1 - Localized magnetic fields in arbitrary directions using patterned nanomagnets

AU - McNeil, Robert P G

AU - Schneble, Jeff

AU - Kataoka, Masaya

AU - Ford, Christopher J. B.

AU - Kasama, Takeshi

AU - Dunin-Borkowski, Rafal E.

AU - Feinberg, Joshua M.

AU - Harrison, Richard J.

AU - Barnes, Crispin H. W.

AU - Tse, Desmond H. Y.

AU - Trypiniotis, Theodossis

AU - Bland, J. Anthony C.

AU - Anderson, David

AU - Jones, Geb A. C.

AU - Pepper, Michael

PY - 2010

Y1 - 2010

N2 - Control of the local magnetic fields desirable for spintronics and quantum information technology is not well developed. Existing methods produce either moderately small local fields or one held orientation. We present designs of patterned magnetic elements that produce remanent fields of 50 mT (potentially 200 Rif) confined to chosen, submicrometer regions in directions perpendicular to an external initializing field. A wide variety of magnetic-field profiles on nanorneter scales can be produced with the option of applying electric fields, for example, to move a quantum clot between regions where the magnetic-field direction or strength is different. We have confirmed our modeling by measuring the fields in one design using electron holography.

AB - Control of the local magnetic fields desirable for spintronics and quantum information technology is not well developed. Existing methods produce either moderately small local fields or one held orientation. We present designs of patterned magnetic elements that produce remanent fields of 50 mT (potentially 200 Rif) confined to chosen, submicrometer regions in directions perpendicular to an external initializing field. A wide variety of magnetic-field profiles on nanorneter scales can be produced with the option of applying electric fields, for example, to move a quantum clot between regions where the magnetic-field direction or strength is different. We have confirmed our modeling by measuring the fields in one design using electron holography.

U2 - 10.1021/nl902949v

DO - 10.1021/nl902949v

M3 - Journal article

C2 - 20377235

SN - 1530-6984

VL - 10

SP - 1549

EP - 1553

JO - Nano Letters

JF - Nano Letters

IS - 5

ER -

Localized magnetic fields in arbitrary directions using patterned nanomagnets

Abstract

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