Highly Textured FeCo Thin Films Deposited by Low Temperature Pulsed Laser Deposition
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- 作者：Gaspare Varvaro ; Davide Peddis ; Gianni Barucca ; Paolo Mengucci ; Valeria Rodionova ; Ksenia Chichay ; Alberto Maria Testa ; Elisabetta Agostinelli ; Sara Laureti
- 刊名：ACS Applied Materials & Interfaces
- 出版年：2015
- 出版时间：October 14, 2015
- 年：2015
- 卷：7
- 期：40
- 页码：22341-22347
- 全文大小：447K
- ISSN：1944-8252
文摘
The effect of the deposition temperature (Tdep) on the crystallographic orientation of pulsed laser-deposited FeCo/MgO(100) thin film was determined by means of X-ray reflectivity and high resolution trasmission electron microscopy analysis and was correlated with the magnetic anisotropy properties measured by angle dependent hysteresis loops. Highly textured films with a bcc structure and very smooth surface were obtained even at room temperature, the film being [100] and [110] oriented, at Tdep = 25 掳C and 150 掳C, respectively. The cubic symmetry is reflected in the angular dependence of remanent magnetization, showing a 4-fold character, whose in-plane distribution is consistent with the different crystallographic orientations of the films. The high structural quality, even at room temperature, is reflected in a high value of the saturation magnetization and low coercivity, matching the requirements for technological applications.