Extrasensory neuromorphic devices
that can recognize, memorize,
and learn stimuli imperceptible to human beings are of considerable
interest in interactive intelligent electronics research. This study
presents an artificially intelligent magnetoreceptive synapse inspired
by the magnetocognitive ability used by birds for navigation and orientation.
The proposed synaptic platform is based on arrays of ferroelectric
field-effect transistors with air-suspended magneto-interactive top-gates.
A suspended gate of an elastomeric composite with superparamagnetic
particles laminated with an electrically conductive polymer is mechanically
deformed under a magnetic field, facilitating control of the magnetic-field-dependent
contact area of the suspended gate with an underlying ferroelectric
layer. The remanent polarization of the ferroelectric layer is electrically
programmed with the deformed suspended gate, resulting in analog conductance
modulation as a function of the magnitude, number, and time interval
of the input magnetic pulses. The proposed extrasensory magnetoreceptive
synapse may be used as an artificially intelligent synaptic compass
that facilitates barrier-adaptable navigation and mapping of a moving
object
