The domain structure and magnetic anisotropy in Co-based amorphous ribbons after annealing in a helical magnetic field: Part II

Damping of the domain walls motion in Co-based amorphous ribbons with helical magnetic anisotropy: Part III

“…The instantaneous values of the induction coil emf, the Matteucci emf between the ends of a ribbon and the coordinates of domain walls are considered in this equation. This work supplements the experimental and theoretical results received in works [1,3].…”

“…The interaction of a domain wall with a non-uniform field of a magnetic anisotropy [8] in a ribbon surface layer (see curve D in Fig. 6 in [1]) can also make the contribution into H fr . The large value of H fr in a ribbon surface layer can be the dominating reason of forming of a pair of domain walls close to a ribbon median plane at the beginning of its magnetic reversal.…”

“…2(a)) that the sandwich domain structure appears (that is a value f À y 0 % 90 ) when the coordinate of ''the domain wall'' x % 0:7 mm. This value is approximately equal to a half-thickness d i =2 of the immobile domain wall located in a median plane of a ribbon (see [1]). We can assume that the rotation direction of spins in the immobile domain wall is changed at the beginning of the magnetic reversal of a ribbon.…”

“…The domain walls in this structure are parallel to the main surface of the ribbon (see [1]). The bowing of domain walls caused by the magnetic fields of eddy currents does not exist in the sandwich domain structure.…”

The sandwich domain structure in a Fe-based amorphous ribbon with uniaxial magnetic anisotropy

“…The dynamics of a sandwich domain structure in Co-based amorphous ribbons with a helical magnetic anisotropy was, in details, studied in works [5][6][7]. The formation of a sandwich domain structure in these ribbons is caused by strong inhomogeneity of the magnetic characteristics on a thickness of a ribbon.…”