The thinSheet-CubicAnisotropy consists in studing a thin sheet of permalloy.
The thinSheet-CubicAnisotropy is rectangular with 15.625 nm of width, 2000 nm of height & 1000 nm of length.
The mesh constains 64 cells in X direction, 128 cells in Y direction & 1 cell in Z-direction.
| Ms | Aimantations (A/m) | 1.7e6 |
| K1 | Main Anisotropy (J/m^3) | 45e4 |
| K2 | Second Anisotropy (J/m^3) | 15e4 |
| A | Exchange (J/m^3) | 1.e-10 |
| L | reference length (m) | 1.5625e-8 |
| L/Le | exchange influence | 2.10 |
The anisotropy directions Uk is uniformly in the k-direction.
The crystal type is either uniaxial or cubic.
The initial magnetism M is randomized
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| neighbor indicators | initial magnetism value |
For the uniaxial case, the simulation parameters are:
| relaxation | taylor expansion |
| time | optimal |
| relaxation rate | 1.e-8 |
| toeplitz vector product | LT |
The the results are as follow:
The value of magnetism field at equilibrium state are plot as follow:
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| equilibrium magnetism M normed by |H| | total magnetic excitation |H| |
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| evolution of the energy during iterations | evolution of the time step during iteratons |
| relaxation | gauss legendre/td> |
| time | golden number |
| relaxation rate | 1.e-8 |
| toeplitz vector product | LT |
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| equilibrium magnetism M normed by |H| | total magnetic excitation |H| |
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| energy evolution during iterations | time step evolution during iterations |
