Enhanced Signal-to-Noise Ratio in Current-Perpendicular-to-Plane Giant-Magnetoresistance Sensors by Suppression of Spin-Torque Effects
| العنوان: | Enhanced Signal-to-Noise Ratio in Current-Perpendicular-to-Plane Giant-Magnetoresistance Sensors by Suppression of Spin-Torque Effects |
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| المؤلفون: | Goran Mihajlovic, Jeffrey R. Childress, John C. Read, Hsin-Wei Tseng, Tomoya Nakatani, Young-Suk Choi, Neil Smith |
| المصدر: | IEEE Magnetics Letters. 6:1-4 |
| بيانات النشر: | Institute of Electrical and Electronics Engineers (IEEE), 2015. |
| سنة النشر: | 2015 |
| مصطلحات موضوعية: | Condensed Matter::Materials Science, Magnetization, Materials science, Exchange bias, Condensed matter physics, Magnetoresistance, Spintronics, Bandwidth (signal processing), Perpendicular, Giant magnetoresistance, Instability, Electronic, Optical and Magnetic Materials |
| الوصف: | We report a $\sim 4\; \text{dB}$ enhancement in signal-to-noise ratio of current-perpendicular-to-the-plane giant magnetoresistance sensors with Heusler alloy magnetic layers due to insertion of an InZnO electrically conductive oxide into an Ag-based metallic spacer layer. Signal and noise device characterization at various magnetic bias conditions shows that this enhancement arises from an increase in magnetoresistance signal at higher bias currents without spin-torque-induced magnetic instability. The best obtained signal-to-noise, over 30dB for 1GHz bandwidth, promises application of these sensors in magnetic recording heads for hard-disk drives at recording densities above 1Tbit/in2 . |
| تدمد: | 1949-3088 1949-307X |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ff1116070c2efc034bb654c186f710d1 https://doi.org/10.1109/lmag.2015.2496552 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........ff1116070c2efc034bb654c186f710d1 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19493088 1949307X |
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