A multiscale model for thin film AMR sensors

► A multiscale strategy for the modeling of thin film AMR sensors is proposed. ► The approach is based on the changes under external loading of the free energy at the magnetic domains scale. ► Small thickness and crystallographic texture effects are introduced in the modeling. ► The behavior of commercial AMR sensors is satisfactorily modeled. ► The role of the bias field and of the film thickness is discussed.