Steady-state magnetic field in the Alfvén resonance region.

Abstract

The time-independent transverse magnetic field that is generated via the nonlinear mixing of linear Alfven waves is examined in the vicinity of the Alfven resonance surface. It is shown that this magnetic field is unidirectional, and it is confined within a narrow layer. The position of the layer along with the amplitude and direction of the magnetic field within it can be controlled by means of the primary wave frequency, wave numbers, and amplitude. Combinations of these magnetized layers can, therefore, be used for the modification or synthesis of transverse magnetic fields.