Magnetic Nanodevice and Fabrication Method

A method for modifying a pliable medium, comprising:

• stretching an inner layer disposed between a first magnetic layer and a second magnetic layer by magnetizing the first magnetic layer and the second magnetic layer with an externally-applied magnetic field;
• and
• the inner layer, the first magnetic layer, and the second magnetic layer forming a layer stack embedded in the pliable medium.

A method for fabricating a magnetic nanodevice comprising:

• transferring a pillar array to a bottom stack, such that the resulting device-stack includes (i) a plurality of pillar-masked regions each masked by a respective one of a plurality of pillars of the pillar array and (ii) an exposed region not masked by any of the plurality of pillars;
• removing the exposed region, thereby adding, to each pillar of the plurality of pillars, a respective part of the bottom stack.