Publikation: Quantitative determination of domain wall coupling energetics
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2006
Autor:innen
Ehrke, Henri
Backes, Dirk
Heyderman, Laura J.
Nolting, Friethjof
Vaz, Carlos A. F.
Bland, J. Anthony C.
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Applied Physics Letters. 2006, 88(21), 212510. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2207220
Zusammenfassung
The magnetic dipolar coupling of head-to-head domain walls is studied in 350 nm wide NiFe and Co nanostructures by high resolution magnetic imaging. We map the stray field of a domain wall directly with sub-10-nm resolution using off-axis electron holography and find that the field intensity decreases as 1/r with distance. By using x-ray magnetic circular dichroism photoemission electron microscopy, we observe that the spin structures of interacting domain walls change from vortex to transverse walls, when the distance between the walls is reduced to below (77±5) nm for 27 nm thick NiFe and (224±65) nm for 30 nm thick Co elements. Using measured stray field values, the energy barrier height distribution for the nucleation of a vortex core is obtained.
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LAUFENBERG, Markus, Daniel BEDAU, Henri EHRKE, Mathias KLÄUI, Ulrich RÜDIGER, Dirk BACKES, Laura J. HEYDERMAN, Friethjof NOLTING, Carlos A. F. VAZ, J. Anthony C. BLAND, Takeshi KASAMA, Rafal E. DUNIN-BORKOWSKI, Salia CHERIFI, Andrea LOCATELLI, Stefan HEUN, 2006. Quantitative determination of domain wall coupling energetics. In: Applied Physics Letters. 2006, 88(21), 212510. ISSN 0003-6951. eISSN 1077-3118. Available under: doi: 10.1063/1.2207220BibTex
@article{Laufenberg2006Quant-9083,
year={2006},
doi={10.1063/1.2207220},
title={Quantitative determination of domain wall coupling energetics},
number={21},
volume={88},
issn={0003-6951},
journal={Applied Physics Letters},
author={Laufenberg, Markus and Bedau, Daniel and Ehrke, Henri and Kläui, Mathias and Rüdiger, Ulrich and Backes, Dirk and Heyderman, Laura J. and Nolting, Friethjof and Vaz, Carlos A. F. and Bland, J. Anthony C. and Kasama, Takeshi and Dunin-Borkowski, Rafal E. and Cherifi, Salia and Locatelli, Andrea and Heun, Stefan},
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<dcterms:abstract xml:lang="deu">The magnetic dipolar coupling of head-to-head domain walls is studied in 350 nm wide NiFe and Co nanostructures by high resolution magnetic imaging. We map the stray field of a domain wall directly with sub-10-nm resolution using off-axis electron holography and find that the field intensity decreases as 1/r with distance. By using x-ray magnetic circular dichroism photoemission electron microscopy, we observe that the spin structures of interacting domain walls change from vortex to transverse walls, when the distance between the walls is reduced to below (77±5) nm for 27 nm thick NiFe and (224±65) nm for 30 nm thick Co elements. Using measured stray field values, the energy barrier height distribution for the nucleation of a vortex core is obtained.</dcterms:abstract>
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<dc:creator>Dunin-Borkowski, Rafal E.</dc:creator>
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