Abstract
Magnetic properties of magnetostrictive FeGa films deposited by electrodeposition method on flexible curvature substrates were investigated under various mechanical stresses. The stresses of the bowed substrates were realized by series of different concentric circles. FeGa films exhibit a significant uniaxial magnetic anisotropy after the application of tensile or compressive stress, and the anisotropy of the film can be regulated by the residual stress. In addition, the magnetostriction of FeGa films is estimated through approximate calculation, indicating that the saturation magnetostrictive constant of films is enhanced with the increased tensile and compressive strains. These results provide another way to tune the magnetic properties and magnetostriction of flexible thin films, which is particularly important for the development of the flexible magneto-electronic devices.
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Acknowledgments
This work is supported by National Basic Research Program of China (2012CB933101), National Science Fund of China (51371092. 11574121), PCSIRT (Grant No. IRT1251), Open Project of Key Laboratory of Sensor and Sensor Technology, Gansu Province (Institute of Sensor Technology, Gansu Academy of Sciences).
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Cao, D., Wang, Z., Pan, L. et al. Controllable magnetic and magnetostrictive properties of FeGa films electrodeposited on curvature substrates. Appl. Phys. A 122, 938 (2016). https://doi.org/10.1007/s00339-016-0468-y
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DOI: https://doi.org/10.1007/s00339-016-0468-y