The disk surface is also normally of high quality and is unlikely to shed its magnetic layer, at least not for several years.

One is to use a thinner plastic backing for the magnetic layer.

Another way is to thin down the magnetic layer itself.

By passing a current through a thick magnetic layer, one can produce a spin-polarized current.

At high power, the surface heats up more and takes its magnetic 'charge' from the north pole magnetic layer.

A junction consists of two magnetic layers separated by an insulator.

When a field is switched in the one magnetic layer, resistance drops, representing a "1."

The scent selection for each frame is then encoded on a magnetic layer of the film inside the camera.

Without magnetic field, neighboring magnetic layers prefer the anti-parallel order.

These two layers protect the magnetic layer (data storage area) from most accidental touches of the read-write head.