Fe thin film of thickness 90nm produces large horizontal displacement by magnetic torque

We have successfully fabricated a silicon oxide micro-cantilever (length 70 um × width 700 nm) with a silicon oxide plate (length 70 um × width 5 um) that combines magnetic membrane, and actuated the micro-cantilever by placing in a applied magnetic field. Our structure of the magnetic membrane is a ellipse of iron (length 50 um × width 1 um × thickness 90 nm). The silicon oxide micro-cantilever with applied magnetic field of 1500 gauss has been horizontally displaced 20 um.