کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10155914 | 1666368 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modulated spin orbit torque via controlling the oxidation level of Ti in Pt/Co/TiOx heterostructures
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We have investigated the oxidation effect on the spin orbit torque (SOT) in Pt/Co/TiOx heterostructures through controlling the oxidation time of Ti. The SOT induced magnetization switching in Pt/Co/Ti heterostructures is weak. However, it becomes evident as the oxidation of the Ti layer goes above a threshold level, and the magnetization can be completely switched when the oxidation time of the Ti layer is 11â¯min. With excessive oxidation, the SOT in the Pt/Co/TiOx films finally disappears. The average valence of the Ti was confirmed by X-ray photoelectron spectroscopy (XPS) spectra, which is about +3.619 for 11 min oxidation and the Ti2O3 will enhance the SOT efficiency. It is proposed that the oxidation will modulate the interfacial Rashba effect, the film qualities and the spin transparency at the interfaces, which will collectively dominate the SOT results.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Communications - Volumes 284â286, December 2018, Pages 5-10
Journal: Solid State Communications - Volumes 284â286, December 2018, Pages 5-10
نویسندگان
Zelalem Abebe Bekele, Kangkang Meng, Jun Miao, Xiaoguang Xu, Yong Jiang,