Observation of Electric Field Gradients near Field-Emission Cathode Arrays

Liang, Y.; Bonnell, D. A.; Goodhue, W. D.; Rathman, D. D.; Bozler, C. O.

doi:10.1063/1.113841

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:

Liang, Y. ^[1]; Bonnell, D. A. ^[1]; Goodhue, W. D. ^[2]; Rathman, D. D. ^[2]; Bozler, C. O. ^[2]

Univ. of Pennsylvania, Philadelphia, PA (United States)
Massachusetts Institute of Technology, Lincoln Laboratory, Lexington, MA (United States)

Publication Date:: Mon Feb 27 00:00:00 EST 1995

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.

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                    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.  https://doi.org/10.1063/1.113841

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                    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.  https://doi.org/10.1063/1.113841.  https://www.osti.gov/servlets/purl/1489814.

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@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         = {Mon Feb 27 00:00:00 EST 1995},

  month        = {Mon Feb 27 00:00:00 EST 1995}

}

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Journal Article:

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https://doi.org/10.1063/1.113841

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Cited by: 18 works

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Figures / Tables:

Figure 1: An AFM image showing topographic structure of conical field emitters on the surface. The size of the image is 2 $\mu$mX2 $\mu$m with a black-towhite scale of 300 nm.

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