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research article

Magnetic states in low-pinning high-anisotropy material nanostructures suitable for dynamic imaging

Buettner, Felix
•
Moutafis, C.
•
Bisig, A.
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2013
Physical Review B

We present magnetic domain states in a material configuration with high (perpendicular) magnetic anisotropy and particularly low magnetic pinning. This material, a B-doped Co/Pt multilayer configuration, exhibits a strong magnetic contrast in x-ray transmission experiments, making it apt for dynamic imaging with modern synchrotron techniques, providing high spatial and high temporal resolution simultaneously. By analyzing the static spin structures in nanodisks at variable external fields, we show that CoB/Pt multilayers exhibit low enough domain wall pinning to manipulate the domain pattern with weak stimuli and in particular to move domains and domain walls. We demonstrate in a proof-of-principle experiment using pump-probe x-ray holographic imaging that moderate magnetic fields can induce elastic and deterministic and hence repeatable small variations of the domain configuration in CoB/Pt multilayers, which is the key to perform high-resolution imaging of the domain wall motion to gain insight to the details of the local magnetization dynamics. DOI: 10.1103/PhysRevB.87.134422

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Type
research article
DOI
10.1103/PhysRevB.87.134422
Web of Science ID

WOS:000318175100002

Author(s)
Buettner, Felix
Moutafis, C.
Bisig, A.
Wohlhueter, P.
Guenther, C. M.
Mohanty, J.
Geilhufe, J.
Schneider, M.
Schmising, C. V. Korff
Schaffert, S.
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Date Issued

2013

Publisher

Amer Physical Soc

Published in
Physical Review B
Volume

87

Issue

13

Article Number

134422

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LNSD  
Available on Infoscience
October 1, 2013
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/95481
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