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Perpendicular STT Oscillator Chia-Ling Chien, Johns Hopkins University, DMR 0520491

Co. Pt. Co. Fcc (111) textured Co/Pt multilayer. Perpendicular STT Oscillator Chia-Ling Chien, Johns Hopkins University, DMR 0520491. Background

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Perpendicular STT Oscillator Chia-Ling Chien, Johns Hopkins University, DMR 0520491

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  1. Co Pt Co Fcc (111) textured Co/Pt multilayer Perpendicular STT Oscillator Chia-Ling Chien, Johns Hopkins University, DMR 0520491 Background Spin transfer torque (STT) oscillator with perpendicularly magnetized electrodes offers much superior performance characteristics comparing to in-plane STT oscillators. This Work (Scientific and Technological Interests) We have fabricated a STT device with perpendicularly magnetized electrodes made of Co/Pt multilayer and demonstrated STT driven magnetization switching. We are in the process of integrating a in-plane GMR reader with the perpendicular STT oscillator so that oscillation can be directly detected as voltage signal. Perpendicular STT Oscillator Perpendicular STT Device Spin-torque-transfer switching: Co/Pt Co/Pt Analyzer Cu spacer Oscillating layer Cu spacer Device in fabrication GMR and STT Switching Measurements Polarizing layer J.-H. Park, M. Moneck, C. Park, and J.-G. Zhu, Journal of Applied Physics, in press.

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