Demonstration of multilevel cell spin transfer switching in MgO magnetic tunnel junctions

X Lou, Z Gao, DV Dimitrov, MX Tang - Applied Physics Letters, 2008 - pubs.aip.org
Multilevel cell is an important concept to improve the density of spin transfer torque memory.
We demonstrated two-bit multilevel cell spin transfer switching using MgO-based magnetic …

Reduction of the spin-torque critical current by partially canceling the free layer demagnetization field

L Liu, T Moriyama, DC Ralph, RA Buhrman - Applied Physics Letters, 2009 - pubs.aip.org
We significantly reduce the critical current I c 0 for the onset of spin torque switching of the
free layer in nanometer-scale in-plane magnetized spin valves by partially cancelling its …

Ultrafast switching of a nanomagnet by a combined out-of-plane and in-plane polarized spin current pulse

OJ Lee, VS Pribiag, PM Braganca, PG Gowtham… - Applied Physics …, 2009 - pubs.aip.org
We report on spin valve devices that incorporate both an out-of-plane polarizer (OPP) to
quickly excite spin torque (ST) switching and an in-plane polarizer/analyzer (IPP). For …

Spin-torque-driven ballistic precessional switching with 50 ps impulses

OJ Lee, DC Ralph, RA Buhrman - Applied Physics Letters, 2011 - pubs.aip.org
We demonstrate reliable spin-torque-driven ballistic precessional switching using 50 ps
current impulses in a spin-valve device that includes both in-plane and out-of-plane spin …