 | MSM 2000
Technical Proceedings of the 2000 International Conference on Modeling and Simulation of Microsystems
Chapter 9: Signal Integrity Simulation and Verification |
| | Wavelet Based Matrix Compression in Numerical Micromagnetics |
| Authors: | T. Schrefl, D. Süss and J. Fidler |
| Affilation: | Vienna University of Technology, Austria |
| Pages: | 429 - 432 |
| Keywords: | micromagnetics, finite elements, boundary elements, wavelets, matrix compression |
| Abstract: | Magnetic sensors and magneto-mechanic devices consist of spatially distinct ferromagnetic parts. Modeling their functional behavior requires to take into account the magnetostatic interactions between the magnetic elements. A hybrid finite element / boundary element method is combined with a wavelet matrix compression technique to simulate magnetization reversal of an array of magnetic nano-elements. This novel method reduces the storage requirements and the CPU time while keeping a reasonable accuracy. The boundary element matrix shows a sparsity of 80% to 90% with a corresponding relative error of the magnetic properties in the range of 2% to 5%. The calculated switching field of elongated NiFe nano-elements depends on magnetic state of neighboring elements. The spread in the switching field agrees with experimental data obtained from Lorentz electron microscopy. |
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| ISBN: | 0-9666135-7-0 |
| Pages: | 741 |
| Hardcopy: | $100.00 |
| Special: | 3 CD Set — 15% off with Free Shipping |
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