The physics of the magnetoelectric near fields

The surface limiting a solid body locally modifies the physical properties of materials. A continuous variation of field structure across the interfaces defines the near field, which is considered as the extension of the field existing inside the material to the outside region. In a case of near fields of dielectric materials, one observes the evanescent wave character of the fields with continuous variation of field amplitudes and energies across the interfaces. In a case of a material with magnetoelectric (ME) properties, along with the question of variation of field amplitudes, questions also arise of variation of field phases and angularmomentum conservation across the interfaces.