Bloch line memory device and method for operating same.

摘要

There are disclosed techniques concerning reading out Bloch lines in a Bloch line memory device, where pairs of Bloch lines (4) are used as information carrier. The pairs of Bloch lines (4) are transferred to the head portion of a stripe magnetic domain (2) and an in-plane magnetic field (Hc) is applied at the proximity of the head portion of the stripe magnetic domain so that the pairs of Bloch lines are splitted. In this way only one of the Bloch lines (4-l or 4-2) can exist stably at the head portion of the stripe magnetic domain. Then the Bloch lines (4-l or 4-2) are transformed into a magnetic bubble domain (8) by making electric current to flow through a hair pin shaped conductor (7) disposed at the proximity of the head portion of the stripe magnetic domain (2). This magnetic bubble domain is detected by a magnetic bubble detector.