Magnetic fields 3 Magneto-optical Kerr effects 3 Optical Kerr effect Domain walls 2 Elastic material status 2 Elastic materials 2 Elasticity 2 Grain boundaries 2 Kerr-Effect microscope 2 Magnetic domains 2 Magneto-optical kerr effect microscope 2 Nondestructive examination 2 Plastic material status 2 Plastic materials 2 Relaxation time 2 Repeatability and stability 2 Residual magnetic field 2 Residual magnetic fields 2 Silicon steel 2 Stability 2 Stress measurement 2 Stress relaxation 2 elastic material status 2 magneto-optical Kerr effect microscope (MOKE) 2 plastic material status 2 repeatability and stability 2 residual magnetic field (RMF) 2 Brillouin scattering 1 Domain structure 1 Dzyaloshinskii-Moriya interaction 1