photomagnetoelectric
/ˌfəʊtəʊmaɡˌniːtəʊɪˈlɛktrɪk/Physics
adjective
Of, relating to, or designating an effect observed in some solids whereby illumination of a surface subjected to a magnetic field parallel to the surface gives rise to a voltage at right angles to both the direction of the field and that of the illumination.
Origin
1930s. From photo- + magneto- + electric. Compare earlier magneto-electric.