O
O. J. Lee
Researcher at Cornell University
Publications - 18
Citations - 1965
O. J. Lee is an academic researcher from Cornell University. The author has contributed to research in topics: Spin Hall effect & Spintronics. The author has an hindex of 9, co-authored 10 publications receiving 1676 citations.
Papers
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Current-induced switching of perpendicularly magnetized magnetic layers using spin torque from the spin Hall effect.
TL;DR: It is suggested that the SHE torque also affects current-driven magnetic domain wall motion in Pt/ferromagnet bilayers and can enable memory and logic devices with similar critical currents and improved reliability compared to conventional spin-torque switching.
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Central role of domain wall depinning for perpendicular magnetization switching driven by spin torque from the spin Hall effect
O. J. Lee,Luqiao Liu,Chi-Feng Pai,Y. Li,Hsin-Wei Tseng,P. G. Gowtham,Junbo Park,Daniel C. Ralph,Robert A. Buhrman +8 more
TL;DR: In this paper, the authors studied deterministic magnetic reversal of a perpendicularly magnetized Co layer in a Co/MgO/Ta nanosquare driven by spin Hall torque from an in-plane current flowing in an underlying Pt layer.
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Macrospin modeling of sub-ns pulse switching of perpendicularly magnetized free layer via spin-orbit torques for cryogenic memory applications
TL;DR: In this paper, the magnetic reversal of a perpendicularly magnetized nanostructured free layer formed on a normal, heavy-metal nanostrip, subjected to spin-orbit torques generated by short (≤0.5
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Ultrafast switching of a nanomagnet by a combined out-of-plane and in-plane polarized spin current pulse
TL;DR: In this article, an out-of-plane polarizer (OPP) was used to quickly excite spin torque (ST) switching and an IPP/analyzer (IPP) was added to accelerate spin torque switching.
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Images of a spin-torque-driven magnetic nano-oscillator
Xiaowei Yu,Vlad Pribiag,Yves Acremann,Ashwin Tulapurkar,Tolek Tyliszczak,Kang Wei Chou,Björn Bräuer,Zhi-Pan Li,O. J. Lee,P. G. Gowtham,Daniel C. Ralph,Robert A. Buhrman,Joachim Stöhr +12 more
TL;DR: This work presents the first space- and time-resolved images of the spin-torque-induced steady-state oscillation of a magnetic vortex in a spin-valve nanostructure and finds that the vortex structure in a nanopillar is considerably more complicated than the 2D idealized structure often-assumed.