An analytical detectivity model derived from air-gap simulations identifies an optimal flux concentrator geometry that improves MTJ sensor performance by three orders of magnitude over a single junction.
Oogane et al., Sub-pT magnetic field detection by tunnel magneto-resistive sensors, Appl
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Design optimization of flux concentrators for magnetic tunnel junctions-based sensors
An analytical detectivity model derived from air-gap simulations identifies an optimal flux concentrator geometry that improves MTJ sensor performance by three orders of magnitude over a single junction.