We established that at these distances, a turn-on field above 80 V/μm is necessary to extract the current from the NFs while the field enhancement factor shows a decreasing trend for increasing distance, so that β ≈ 11 at d = 1100 nm. 4.
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We established that at these distances, a turn-on field above 80 V/μm is necessary to extract the current from the NFs while the field enhancement factor shows a decreasing trend for increasing distance, so that β ≈ 11 at d = 1100 nm. 4.