Such magnetic tunnel junctions
can be also used to store synaptic weights.
Recently, we performed a precise Fano factor measurement of the MgO-based magnetic tunnel junction
3 Magnetic tunnel junction
(MJT):A tunnel junction that uses the magnetoresistive effect.
Jonker, "Graphene as a tunnel barrier: graphene-based magnetic tunnel junctions
," Nano Letters, vol.
Recently, interest in the magnetic tunnel junction
(MTJ) which uses a thin dielectric spacer (e.g., MgO) as is shown in Figure 1(a) is rapidly growing because it may overcome the limitation of small power in giant magnetoresistance (GMR) devices.
Schematic illustration of an magnetic tunnel junction
magnetic RAM device (above) reveals how magnetoresistance can be used for different applications.
In the case of magnetic tunnel junctions
with an insulating barrier between the two spin-polarized metallic layers or if there is no exchange coupling between the layers, the spin-tunneling magnetothermopower, [S.sub.T], can be written as 
They discuss magnetic memories and STT, magnetic tunnel junctions
(MTJs), STT MRAMs, hybrid MTJ-CMOS digital circuits, nonvolatile computing with STT MRAMs, STT-based all spin logic, and nonvolatile computing with all spin information processing.
Consequently, the content of the book is divided into six parts mostly focusing on specific materials and structures with extensive cross-references between chapters to reflect the fact that the discoveries in one class of materials may be directly relevant to the breakthroughs in seemingly unrelated systems." After a historical overview, coverage in 38 chapters encompasses magnetic metallic multilayers, magnetic tunnel junctions
, semiconductors, the nanoscale, and applications.
The 16 oral and poster papers cover dilute magnetic semiconductor and oxides, magnetic resistive RAM, single-spin dynamics/DMS I, spintronics materials, magnetic tunnel junctions
and dynamics, spintronics transport and imaging, and multi-ferroic materials and oxides.