Rotation

Hello,

I am trying to allow the remanent flux density within a magneto-active elastomer (MAE) to rotate with the elastomer as a magnetic field is applied to the material. Within the ampere's law that governs the MAE, I have the following:

Model Inputs-> STP
Material Type/Electric Field/Conduction Current->From Material
Coordinate System->Global CS

And the main section:
Magnetic Field- I'm using remanent flux density
Relative perm- From Material

Remanent Flux Density (Where I believe the problem lies):
X: M*cos(solid.curlUZ/2)
Y: M*sin(solid.curlUZ/2)
Z: 0

I've tried varying rotation between solid.curl and solid.Rot variables. I've attached both a picture(to help clarify visually) and the model. I'm just looking to rotate the remanent flux density with the rotation of the elastomer. Just to be clear, the rotation is about the Z axis (no rotation or displacement in the Z-direction).