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

Title
Ultrafast switching of a nanomagnet by a combined out-of-plane and in-plane polarized spin current pulse
Authors
이억재V. S. PribiagP. M. BragancaP. G. GowthamD. C. RalphR. A. Buhrman
Keywords
spin torque switching; ultrafast magnetization switching; precessional switching
Issue Date
2009-07
Publisher
Applied physics letters
Citation
VOL 95, NO 1, 012506
Abstract
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 pulses <200 ps, we observe reliable precessional switching due largely to ST from the OPP. Compared to a conventional spin valve, for a given current amplitude from similar to 2 to 3 times the zero-thermal-fluctuation critical current (I(c0)), the addition of the OPP can decrease the pulse width necessary for switching by a factor of 10 or more. The effect of the IPP also has beneficial ST consequences for the short pulse switching behavior. (C) 2009 American Institute of Physics
URI
http://pubs.kist.re.kr/handle/201004/65293
ISSN
0003-6951
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE