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Title: Observation of Electric Field Gradients near Field-Emission Cathode Arrays

Abstract

In this study, 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. Furthermore, the height dependence of the field gradient is found to follow a power law relationship. These new results demonstrate that force‐gradient atomic force microscopy is capable of providing a direct visual presentation of the variation of field gradients above submicron‐periodicity field emitter arrays.

Authors:
 [1];  [1];  [2];  [2];  [2]
  1. Univ. of Pennsylvania, Philadelphia, PA (United States)
  2. Massachusetts Institute of Technology, Lincoln Laboratory, Lexington, MA (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1489814
Report Number(s):
PNNL-SA-24727
Journal ID: ISSN 0003-6951
Grant/Contract Number:  
AC05-76RL01830
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 66; Journal Issue: 9; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 36 MATERIALS SCIENCE

Citation Formats

Liang, Y., Bonnell, D. A., Goodhue, W. D., Rathman, D. D., and Bozler, C. O. Observation of Electric Field Gradients near Field-Emission Cathode Arrays. United States: N. p., 1995. Web. doi:10.1063/1.113841.
Liang, Y., Bonnell, D. A., Goodhue, W. D., Rathman, D. D., & Bozler, C. O. Observation of Electric Field Gradients near Field-Emission Cathode Arrays. United States. doi:10.1063/1.113841.
Liang, Y., Bonnell, D. A., Goodhue, W. D., Rathman, D. D., and Bozler, C. O. Mon . "Observation of Electric Field Gradients near Field-Emission Cathode Arrays". United States. doi:10.1063/1.113841. https://www.osti.gov/servlets/purl/1489814.
@article{osti_1489814,
title = {Observation of Electric Field Gradients near Field-Emission Cathode Arrays},
author = {Liang, Y. and Bonnell, D. A. and Goodhue, W. D. and Rathman, D. D. and Bozler, C. O.},
abstractNote = {In this study, 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. Furthermore, the height dependence of the field gradient is found to follow a power law relationship. These new results demonstrate that force‐gradient atomic force microscopy is capable of providing a direct visual presentation of the variation of field gradients above submicron‐periodicity field emitter arrays.},
doi = {10.1063/1.113841},
journal = {Applied Physics Letters},
number = 9,
volume = 66,
place = {United States},
year = {1995},
month = {2}
}

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Cited by: 17 works
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