Embodiments of the invention provide a magnetic recording and read head which reduces the spread read width in a narrow track having a width of 100 nm or less and shows stable read operation. In one embodiment, a side magnetic shield has a multi-layered structure including non-magnetic separate layers and soft magnetic layers, and the soft magnetic layers are magnetized in opposite directions to reduce a magnetic field induced by the side magnetic shield.

 
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> Magnetic read-write head shield that prevents flux concentration at edges close to the ABS

> Method and apparatus providing a stabilized top shield in read head for magnetic recording

~ 00548