Localized magnetic fields in arbitrary directions using patterned nanomagnets

McNeil, Robert P. G., Schneble, R. Jeff, Kataoka, Masaya, Ford, Christopher J. B., Kasama, Takeshi, Dunin-Borkowski, Rafal E., Feinberg, Joshua M., Harrison, Richard J., Barnes, Crispin H. W., Tse, Desmond H. Y., Trypiniotis, Theodossis, Bland, J. Anthony C., Anderson, David, Jones, Geb A. C. and Pepper, Michael (2010) Localized magnetic fields in arbitrary directions using patterned nanomagnets. Nano Letters, 10 5: 1549-1553. doi:10.1021/nl902949v


Author McNeil, Robert P. G.
Schneble, R. Jeff
Kataoka, Masaya
Ford, Christopher J. B.
Kasama, Takeshi
Dunin-Borkowski, Rafal E.
Feinberg, Joshua M.
Harrison, Richard J.
Barnes, Crispin H. W.
Tse, Desmond H. Y.
Trypiniotis, Theodossis
Bland, J. Anthony C.
Anderson, David
Jones, Geb A. C.
Pepper, Michael
Title Localized magnetic fields in arbitrary directions using patterned nanomagnets
Journal name Nano Letters   Check publisher's open access policy
ISSN 1530-6984
1530-6992
Publication date 2010-05-12
Sub-type Article (original research)
DOI 10.1021/nl902949v
Open Access Status Not yet assessed
Volume 10
Issue 5
Start page 1549
End page 1553
Total pages 5
Place of publication Washington, DC, United States
Publisher American Chemical Society
Language eng
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 field orientation. We present designs of patterned magnetic elements that produce remanent fields of 50 mT (potentially 200 mT) confined to chosen, submicrometer regions in directions perpendicular to an external initializing field. A wide variety of magnetic-field profiles on nanometer scales can be produced with the option of applying electric fields, for example, to move a quantum dot 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.
Keyword Electron holography
Magnetic field
Nanomagnet
Permalloy
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Centre for Advanced Imaging Publications
 
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