Longitudinal MOKE: Magnetization vector is parallel to both the reflection surface and the plane of incidence. The longitudinal setup involves light reflected at an angle from the reflection surface.

Transversal MOKE: When the magnetization is perpendicular to the plane of incidence and parallel to the surface it is said to be in the transverse configuration.

Figure 34.03 shows schematic of layer structure and XRD patterns of double-layered films.

Figure 34.03: Schematic of layer structure and XRD patterns of double-layered films with different thickness of MgO and SiO₂ layers [1].

Ref.[1]. A. Perumal et al, J. Appl. Phys. 108 (2010) 083907.