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This paper focuses on one small but significant part of a long-term project that aims to improve the interpretation of measured field electron emission (FE) current-voltage [I_m(V_m)] data, and (later) the formulation of FE theory. A new…

Mesoscale and Nanoscale Physics · Physics 2021-07-20 Richard G. Forbes

In field electron emission (FE) studies, it is important to check and analyse the quality and validity of experimental current-voltage data, which is usually plotted in one of a small number of standard forms. These include the so-called…

Applied Physics · Physics 2020-06-16 Mohammad M. Allaham , Richard G. Forbes , Alexander Knapek , Marwan S. Mousa

In field electron emission (FE) studies, it is important to check and analyse the quality and validity of results experimentally obtained from samples, using suitably plotted current-voltage [I(V)] measurements. For the traditional plotting…

Applied Physics · Physics 2020-06-16 Mohammad M. Allam , Richard G. Forbes , Marwan S. Mousa

Measured field electron emission (FE) current-voltage Im(Vm) data are traditionally analysed via Fowler-Nordheim (FN) plots, as ln{Im/(Vm)**2} vs 1/Vm. These have been used since 1929, because in 1928 FN predicted they would be linear. In…

Mesoscale and Nanoscale Physics · Physics 2019-05-21 Richard G. Forbes

This article proposes that we should think differently about predicting and interpreting measured field electron emission (FE) current-voltage [I(V)] characteristics. It is commonly assumed that I(V) data interpretation is a problem in…

Mesoscale and Nanoscale Physics · Physics 2023-03-22 Richard G. Forbes

The commonest method of characterizing a cold field electron emitter is to measure its current-voltage characteristics, and the commonest method of analysing these characteristics is by means of a Fowler-Nordheim (FN) plot. This…

Mesoscale and Nanoscale Physics · Physics 2016-07-04 Richard G. Forbes , Jonathan H. B. Deane , Andreas Fischer , Marwan S. Mousa

Field emission (FE) electron sources are made close to atomic-scale to reach the highest spatial resolution as well as stable emission for electron microscopy, electron beam inspection and lithography. At present, no single agreed method…

This paper presents a new methodology for making comparisons between the theory of field electron emission (FE) and experiment, and is intended as a "demonstration of concept". This methodology is based on the value of the exponent kappa…

Mesoscale and Nanoscale Physics · Physics 2022-07-05 Sergey V. Filippov , Anatoly G. Kolosko , Eugeni O. Popov , Richard G. Forbes

This Comment suggests that technological field electron emission (FE) papers, such as the paper under discussion [P. Serbun et al.,, Rev. Sci. Instrum. 91, 083906 (2020)], should use FE theory based on the 1956 work of Murphy and Good (MG),…

Mesoscale and Nanoscale Physics · Physics 2020-12-03 Richard G. Forbes

For field electron emission (FE), an empirical equation for measured current I_m as a function of measured voltage V_m has the form I_m = C*(V_m)^k*exp[-B/(V_m)], where B is a constant and C and k are constants or vary weakly with V_m.…

Mesoscale and Nanoscale Physics · Physics 2021-02-24 R. G. Forbes , E. O. Popov , A. G. Kolosko , S. V. Filippov

An important parameter used to characterize large-area field electron emitters (LAFEs) is the characteristic apex field enhancement factor {\gamma}_C. This parameter is normally extracted from the slope of a Fowler-Nordheim (FN) plot.…

Applied Physics · Physics 2019-05-31 Richard G. Forbes

Electron emission from cathodes in high field gradients is a quantum tunneling effect. The 1928 Fowler-Nordheim field emission (FE) equation and the 1956 Murphy-Good FE equation have traditionally been key in describing cold field…

Applied Physics · Physics 2024-10-03 Moein Borghei , Robin Langtry

This paper describes a simple quantitative test applicable to current-voltage data for cold field electron emission (CFE). It can decide whether individual reported field-enhancement-factor (FEF) values are spuriously large. The paper…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 Richard G. Forbes

In papers on cold field electron emission from large area field emitters (LAFEs), it has become widespread practice to publish a misleading Fowler-Nordheim-type (FN-type) equation. This equation over-predicts the LAFE-average current…

Mesoscale and Nanoscale Physics · Physics 2018-12-18 Richard G. Forbes

MSstatsQC [3] is an open-source software that provides longitudinal system suitability monitoring tools in the form of control charts for proteomic experiments. It includes simultaneous tools for the mean and dispersion of suitability…

Human-Computer Interaction · Computer Science 2020-03-27 Sara Mohammad Taheri , Omkar Terse , Eralp Dogu , Magy Seif El-Nasr , Olga Vitek

This article introduces an improved approach to Fowler-Nordheim (FN) plot analysis, based on a new type of intercept correction factor. This factor is more cleanly defined than the factor previously used. General enabling theory is given…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 Richard G. Forbes , Andreas Fischer , Marwan S. Mousa

Representing field emission data on a Fowler--Nordheim plot is both very common and strongly not recommended. It leads to a spurious estimation of the emitter parameters despite a very good data fit. There is a lack of a reliable method of…

Materials Science · Physics 2023-02-01 Anthony Ayari , Pascal Vincent , Sorin Perisanu , Philippe Poncharal , Stephen Purcell

Field electron emission (FE) has relevance in many different technological contexts. However, many related technological papers use a physically defective elementary FE equation for local emission current density (LECD). This equation takes…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Richard G. Forbes

Even though the use of power electronics PE loads offers enhanced electrical energy conversion efficiency and control, they remain the primary sources of harmonics in grids. When diverse loads are connected in the distribution system, their…

Systems and Control · Electrical Eng. & Systems 2024-01-22 Jieyu Yao , Hao Yu , Paul Judge , Jiabin Jia , Sasa Djokic , Verner Püvi , Matti Lehtonen , Jan Meyer

Both single emitters and large area field emitters (LAFE) are generally characterized using the slope and intercept of a Murphy-Good (or Fowler-Nordheim) plot which are used to extract the field enhancement factor and the emission area.…

Applied Physics · Physics 2022-02-24 Debabrata Biswas
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