October 2015
Intermediate to advanced
304 pages
9h 15m
English
Content preview from Handbook of Nanomagnetism
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July 2, 2015 17:28 PSP Book - 9in x 6in 02-Nanomagnetism-c02
Spin Torque Transfer Applications 33
by Stuart Parkin at IBM received considerable attention [45], as
illustrated in Fig. 2.10. In Permalloy (NiFe) nanostrips, in which
critical current density has been reported to be around ∼10
8
A/cm
2
and the re-domain wall velocity was ∼150 m/s [46]. The
current density is still 2 orders of magnitude too large for practical
applications. However, a relatively small critical current density
has been reported for nanostrips with perpendicular magnetic
anisotropy (PMA) [41]. In addition, perpendicular magnetic thin
films exhibited much narrower one-dimensional ...
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