Modulation of magnetic coercivity in Ni thin films by reversible control of strain

Optical Writing of Magnetic Properties by Remanent Photostriction

“…A temperature increase of 11.4 K, detected with a thermal camera during the 30 s illumination had no influence on the MðHÞ loops of the Ni film. Even (3) by an electric pulse (c) that corresponds to the ferroelastic coercive force E c as represented by an example sketch (d) [46]. after heating to 325 K (16 K more than detected by the thermal camera), the MðHÞ loops remained unchanged.…”

“…(b) Room-temperature ferromagnetic loops of an 11 nm thick Ni film on top of a BFO single crystal before (1) and after (2) excitation by 404 nm light (fluence 250 J cm −2 ). The initial MðHÞ loop (1) can be recovered (3) by an electric pulse (c) that corresponds to the ferroelastic coercive force E c as represented by an example sketch (d)[46].…”