Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8152722 | Journal of Magnetism and Magnetic Materials | 2018 | 5 Pages |
Abstract
As-deposit (AD) and field-anneal (FA) Fe60Co18Ga22 films have been made. We found that after FA treatment, both the macro-stress and saturation magnetostriction in the film increase greatly. Also, after FA treatment, the tetragonal L12 phase shows up, and coexists within the original two-phase (A2â¯+â¯D03) field. In agreement with the theory, the occurrence of large stress and magnetostriction is related to the magnetic-field-induced flip of the tetragonal axis of the L12 phase crystal by FA. As a low-field sensor, FA could enhance the sensitivity of the Fe60Co18Ga22 film element up to 18.9â¯ppm/Oe.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Condensed Matter Physics
Authors
S.U. Jen, Y.C. Chen,