We propose a new phenomenon in zinc-blende semiconductors, the magnetoelectric effect, which occurs when there exist simultaneously electric-dipole- and magnetic-dipole-induced conduction-electron spin resonance. We point out that this effect can lead to an anomalous dependence of the spin-resonance intensity on the sign of either the dc magnetic field ${\mathrm{B}}_0$ or the wave vector q of the photon. The effect also provides an elegant way of determining the parameter which causes the electric-dipole-induced conduction-electron spin resonance.

• Received 14 February 1989

DOI:https://doi.org/10.1103/PhysRevB.40.1959