Annihilation of vertical-bloch-line chains in the walls of the second kind of dumbbell domains subjected to joint static bias field and in-plane field

摘要

Experiments were statistically carried out on the behavior of vertical-Bloch-line (VBL) chains in the walls of the second kind of dumbbell domains (IIDs) is garnet bubble films sub- jected to joint action of static bias field H_b and in-plane field H_ip. The curves of the four critical in-plane fields, (H_ip)_IID-ID (H_ip)_IID-OHB (H_ip)_IID-SB and H'_ip vs H_b were measured an dex- plained. In particular, in terms of two series of IID photos, a new experimental manifestation of the unknown "number effect" of VBL chains was found.