Domain Patterns on Nickel

Domain patterns have been observed on two single crystals of nickel cut in the form of hollow parallelograms. The length of the sides were parallel to the 111> directions in one specimen and to the 110> directions in the other. The crystals show domain structures with the three types of domain boundaries which are to be expected from a material having the directions of easy magnetization along the 111> directions. Domain boundary movement under the influence of an applied magnetic field was observed.