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Figure 5-13
Normal Pinned Layer
There are two conditions in determining the pinned layer reversal, namely, 'normal pinned
layer' and 'pinned layer reversal'. For normal pinned layer, if the output pulse satisfies the
condition in Figure 5-13 then pinned layer is normal.
Equation 5-13
Condition for Normal Pinned Layer
As shown in Equation 5-13,TAA- of tribit (TriTAA-) is smaller than the TAA of Isolated
Pulse (IsoTAA-). Since three consecutive transitions (tribit) are written the resulting pulse
will be affected by ISI (intersymbol interference) resulting in a smaller and compressed
TriTAA-.
Chapter 5
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Measurement Parameter Definition
TriTAA +
TriTAA Ð
>
---------------------------- -
----------------------------- -
IsoTAA +
IsoTAA Ð
Measurement Definition
255
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