METHOD OF FORMING DOMAIN STRUCTURE WITH 180-DEGREE WALLS IN MONOCRYSTALLINE PLATE OF MULTIAXIAL NONLINEAR OPTICAL FERROELECTRIC Russian patent published in 2024 - IPC H01L21/00 

FIELD: ferroelectrics.

SUBSTANCE: invention can be used for formation of a domain structure with 180-degree walls in a monocrystalline plate of a multiaxial nonlinear optical ferroelectric. Method of forming a domain structure with 180-degree walls in a monocrystalline plate of a multiaxial nonlinear optical ferroelectric comprises steps of: on opposite sides of a monocrystalline plate of a multiaxial nonlinear-optical ferroelectric material, solid-state electrodes are applied using a photolithography technique, wherein at least one of the electrodes is made in accordance with a given pattern, then forming a domain structure in a monocrystalline plate by applying a coercive electric voltage between the electrodes under the effect of high temperature, note here that after application of solid-state electrodes, fixing plates are fixed on opposite sides of monocrystalline plate.

EFFECT: provision of possibility to exclude formation of twins with non-180-degree walls in domain structure with 180-degree walls, formed in a monocrystalline plate of a multiaxial nonlinear optical ferroelectric.

6 cl, 1 dwg