Device with magnetoplastic and/or magnetoelastic thin-film transducer and pick-up coil for harvesting energy

A magnetomechanical device for harvesting energy from random, cyclic or vibrational motion, the device comprising:

• a support with a hole extending into the support, the hole having an opening and a longitudinal axis;
• a magnet connected to said support and providing a magnetic bias,
• a first thin-film transducer on said support and having a portion extending over the hole and coaxial with said hole longitudinal axis, said portion comprising magnetoplastic and/or magnetoelastic material that, upon deformation of the material into said hole by an applied force, produces a net change in magnetization relative to said magnetic bias by twin boundary rearrangement, wherein said portion is coaxial with said longitudinal axis of the hole;
• and
• a one-turn conducting-thin-film pick-up coil on said first thin-film transducer and having a coil opening that is over said portion of the first thin-film transducer, wherein the coil opening is coaxial with the hole and with said portion, and wherein said applied force reaches said portion of the first thin-film transducer through the coil opening, and the conducting-thin-film pick-up coil transduces magnetization to electrical energy;
• wherein said first transducer resides in an initial state prior to deformation by said applied force, and wherein the magnet is adapted to reset said material to the initial state after said deformation.