Bb. Pant, EFFECT OF INTERSTRIP GAP ON THE SENSITIVITY OF HIGH-SENSITIVITY MAGNETORESISTIVE TRANSDUCERS, Journal of applied physics, 79(8), 1996, pp. 6123-6125
For high sensitivity magnetoresistive (MR) transducers, the role of in
terstrip gap is examined as a design parameter. This is modeled using
analytic and numerical approximations. As the gap is narrowed the rang
e of linearity of the MR transducer decreases and the sensitivity incr
eases. For gap/width ratio exceeding 1.8 the strips behave essentially
as isolated strips. An example using typical design parameters shows
that the minimum detectable field is reduced from 6.3 mu Oe/root Hz to
3.6 mu Oe/root Hz asgap/width ratio is reduced from infinity to 0.1.
(C) 1996 American Institute of Physics.