About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
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Recent Developments in Biological, Structural and Functional Thin Films and Coatings
|
Presentation Title |
B-30: Fabrication and Characterization of BiCuSeO Epitaxial Films as the Bottom Electrode of All-oxide Spin Valve |
Author(s) |
Che Ming Lin, Kin Hou Lao |
On-Site Speaker (Planned) |
Che Ming Lin |
Abstract Scope |
In the all-oxide spin valve, BiFeO<sub>3</sub> has a great potential to be used as the pinning layer because of its antiferromagnetic, high ferroelectric polarization value, and coupling of magnetic-electric domains. To prevent electron current leaking of BiFeO<sub>3</sub>, it is necessary for a bottom electrode on which BiFeO<sub>3</sub> films can grow epitaxially with a high electrical conductivity and high stability. However, the electrode is usually deposited by using pulsed laser deposition method, which is time-consuming and high-cost. In this study, we propose an alternative way to deposit the bottom electrode film epitaxially by employing RF magnetron sputter. The BiCuSeO film was deposited as the bottom electrode on an (001)-SrTiO<sub>3</sub> substrate, and the (00l) texture was observed by using X-ray diffraction. Conductivity was found significantly improved comparing with the non-textured bulk material characterized by the Hall measurement. We believe that this method opens a door on designing the next-generation all-oxide spin valve. |
Proceedings Inclusion? |
Planned: Supplemental Proceedings volume |