The variation of electric field gradient above arrays of field emission cathodes has been investigated using atomic force microscopy. The spatial distribution of electric field gradient was obtained as a function of bias and height. Results show a parabolic relation between the sample bias and electric field gradient. Futhermore, the height dependence of the field gradient is found to follow a power law relationship.
Revised: January 8, 2019 |
Published: February 27, 1995
Citation
Liang Y., D.A. Bonnell, W.D. Goodhue, D.D. Rathman, and C.O. Bozler. 1995.Observation of Electric Field Gradients near Field-Emission Cathode Arrays.Applied Physics Letters 66, no. 9:1147-1149.PNNL-SA-24727.doi:10.1063/1.113841