EELECTROMECHANICAL SELF-OSCILLATING SYSTEMS WITH FLEXIBLE FIELD ELECTRON EMITTERS
- Authors: Kleshch V.I.1, Obraztsov A.N.1
 - 
							Affiliations: 
							
- Department of Physics, Lomonosov Moscow State University
 
 - Issue: Vol 165, No 6 (2024)
 - Pages: 776-783
 - Section: Articles
 - URL: https://journals.rcsi.science/0044-4510/article/view/259037
 - DOI: https://doi.org/10.31857/S0044451024060038
 - ID: 259037
 
Cite item
Abstract
The paper presents the results of an experimental and theoretical study of electromechanical self- oscillations in systems consisting of a vacuum diode with a flexible field emission cathode, depending on its elastic properties and ability to deform. Self-oscillation regime experimentally demonstrated for field electron emitters based on carbon nanotubes and diamond microneedles. A mathematical model is developed to describe the electromechanical processes in the self-oscillating systems under consideration. Based on the analysis of the experimental data and simulation results, it is shown that the excitation of self-oscillations in a system with a flexible field emission cathode is determined by a combination of system parameters that result in a negative effective damping coefficient. The potential practical applications of self-oscillations of field emission cathodes in various micro- and nano-electromechanical systems are explored.
About the authors
V. I. Kleshch
Department of Physics, Lomonosov Moscow State University
														Email: klesch@polly.phys.msu.ru
				                					                																			                												                	Russian Federation, 							 119991, Moscow						
A. N. Obraztsov
Department of Physics, Lomonosov Moscow State University
							Author for correspondence.
							Email: klesch@polly.phys.msu.ru
				                					                																			                												                	Russian Federation, 							 119991, Moscow						
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