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The magnetoelastic energy is written as:
$$ E_{me} = B_1(E_{xx}m_{x}^2 + E_{yy}m_{y}^2 + E_{zz}m_{z}^2) + 2B_2(E_{xy}m_{x}m_{y}+E_{xz}m_{x}m_{z}+E_{yz}m_{y}m_{z}) $$
And the effective field is: $\mu_0 h_{me} = -\nabla_{m} E_{me}$ Therefore, for example, the effective field in $m_x$ would be:
$$ h_{me}^x = -2B_1 E_{xx}m_x + 2B_2( E_{xy}my + E_{xz} m_z) $$
The article: https://doi.org/10.12688/openreseurope.13302.1 explains how the model is implemented and in this github link you can find the code: https://github.com/Fredericvdv/Magnetoelasticity_MuMax3/blob/eeb112dff216a4ae3267fc27fe67aa0e7ada6423/cuda/magnetoelasticfield.cu
The effective field terms are:
Bx[I] += -2.0f*(B1*m.x*Exx + B2*(m.y*Exy + m.z*Exz)); By[I] += -2.0f*(B1*m.y*Eyy + B2*(m.x*Eyx + m.z*Eyz)); Bz[I] += -2.0f*(B1*m.z*Ezz + B2*(m.x*Ezx + m.y*Ezy));
Where the 2.0f multiplied both B1 and B2. In the MuMax3 repository I found:
Bx[I] += -(2.0f*B1*m.x*Exx + B2*(m.y*Exy + m.z*Exz)); By[I] += -(2.0f*B1*m.y*Eyy + B2*(m.x*Eyx + m.z*Eyz)); Bz[I] += -(2.0f*B1*m.z*Ezz + B2*(m.x*Ezx + m.y*Ezy));
The parenthesis should be after the 2.0f.
The text was updated successfully, but these errors were encountered:
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The magnetoelastic energy is written as:
And the effective field is:$\mu_0 h_{me} = -\nabla_{m} E_{me}$ $m_x$ would be:
Therefore, for example, the effective field in
The article: https://doi.org/10.12688/openreseurope.13302.1 explains how the model is implemented and in this github link you can find the code: https://github.com/Fredericvdv/Magnetoelasticity_MuMax3/blob/eeb112dff216a4ae3267fc27fe67aa0e7ada6423/cuda/magnetoelasticfield.cu
The effective field terms are:
Where the 2.0f multiplied both B1 and B2. In the MuMax3 repository I found:
The parenthesis should be after the 2.0f.
I did a Pull Request to address this issue.
The text was updated successfully, but these errors were encountered: