INFORMATION STORAGE DEVICE USING MAGNETIC DOMAIN WALL MOVEMENT AND METHOD OF OPERATING THE SAME

摘要

An information storage device using magnetic domain wall movement and an operating method thereof are provided to increase the number of bits of information to be recorded in one memory cell, thereby increasing integrity and storage capacity. An information storage device using magnetic domain wall movement comprises a magnetic layer(100) for data storage, and first and second conductive layers(200a,200b) which make contact with both ends of the magnetic layer. The magnetic layer includes first and second pinning sites(P1,P2) in which magnetic domain wall is pinned. The widths of the first and second pinning sites are not the same.