Unidirectional properties of (YCa)3(FeCoGe)5O12films

The magnetic domain structure in (YCa)
3
(FeCoGe)
5
O
12
films grown on {100} GGG substrates was investigated at room temperature. These films show unexpected low domain wall motion. Some unidirectional properties (eg. relaxation time, domain structure vanishing field) of the samples have been reported in this work. These properties can be changed using an external magnetic field.