TITLE

Reproducible trajectory on subnanosecond spin-torque magnetization switching under a zero-bias field for MgO-based ferromagnetic tunnel junctions

AUTHOR(S)
Aoki, Tatsuya; Ando, Yasuo; Oogane, Mikihiko; Naganuma, Hiroshi
PUB. DATE
April 2010
SOURCE
Applied Physics Letters;4/5/2010, Vol. 96 Issue 14, p142502
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
One of the features of spin-transfer torque (STT)-based magnetic random access memories (spin-RAMs) is a fast write cycle; however, switching properties in the subnanosecond regime for MgO-based magnetic tunnel junctions (MTJs) are still unclear. In this work, we demonstrated subnanosecond magnetization switching by STT for MgO-based MTJs. We also discuss the thermal effect on subnanosecond STT switching, as well as the subnanosecond pulse width that is dependent on the remarkable plateau that switching probability has under a zero-bias field.
ACCESSION #
49071258

 

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