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Digital Library of the
European Council for Modelling and Simulation |
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Title: |
Computation Of Spin-Wave Spectra Of Magnetic Nanostructures
For Information Storage Systems |
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Authors: |
Markus-A. B. W. Bolte, Guido D. Meier,
Massoud Najafi, Dietmar P.F. Möller |
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Published in:
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(2006).ECMS
2006 Proceedings edited by: W. Borutzky, A. Orsoni, R. Zobel. European
Council for Modeling and Simulation. doi:10.7148/2006 ISBN:
0-9553018-0-7 20th
European Conference on Modelling and Simulation, Bonn,
May 28-31, 2006 |
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Citation
format: |
Bolte, M.-A. B.
W., Meier, G. D., Najafi, M., & Möller, D. P.
F. (2006). Computation
Of Spin-Wave Spectra Of Magnetic Nanostructures For Information Storage
Systems. ECMS 2006 Proceedings edited by: W. Borutzky,
A. Orsoni, R. Zobel
(pp. 487-492). European Council for Modeling and Simulation. doi:10.7148/2006-0487 |
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DOI: |
http://dx.doi.org/10.7148/2006-0487 |
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Abstract: |
In recent
years, micromagnetic simulation has evolved into a
vital tool for understanding and optimizing the electronic and dynamic
properties of magnetic structures on the nanometer scale. We have enhanced a micromagnetic simulation tool and developed a package
called SpinWaveAnalyzer for the computation of the spin-wave spectra for arbitrary excitation patterns. We find that
the spin-wave eigenmodes sensitively depend on the
spatial symmetry of their excitations and that for
decreasing lateral extensions, the oscillatory behaviour
of nanosized multilayers shifts from standing spin
waves with higher harmonics along and perpendicular to the static
magnetization to dipolar modes with higher harmonics situated on the edge of
a structure. These simulations can help to find the optimal frequency with which to switch the magnetization of real-life magnetic storage
cells, thus enabling the creation of faster, non-volatile, low-power storage
concepts that could revolutionize computer architectures. |
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