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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…

介观与纳米尺度物理 · 物理学 2022-07-05 Sergey V. Filippov , Anatoly G. Kolosko , Eugeni O. Popov , Richard G. Forbes

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…

材料科学 · 物理学 2023-02-01 Anthony Ayari , Pascal Vincent , Sorin Perisanu , Philippe Poncharal , Stephen Purcell

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…

介观与纳米尺度物理 · 物理学 2019-05-21 Richard G. Forbes

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.…

应用物理 · 物理学 2022-02-24 Debabrata Biswas

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…

应用物理 · 物理学 2020-06-16 Mohammad M. Allam , Richard G. Forbes , Marwan S. Mousa

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…

介观与纳米尺度物理 · 物理学 2021-07-20 Richard G. Forbes

We discuss briefly the kappa framework, proposed originally as a test for the Higgs couplings of the Standard Model (SM). Further, we discuss a generalization of this idea in terms of effective field theory. We sketch how to add dimension 6…

高能物理 - 唯象学 · 物理学 2015-10-12 Raquel Gomez-Ambrosio

Some existing approaches to modeling the thermodynamics of moist air make approximations that break $\textit{thermodynamic consistency}$, such that the resulting thermodynamics do not obey the 1st and 2nd laws or have other inconsistencies.…

大气与海洋物理 · 物理学 2022-09-05 Christopher Eldred , Mark Taylor , Oksana Guba

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…

Field emission formulae, current-voltage characteristics and energy distribution of emitted electrons, are derived analytically for a nonplanar (hyperboloidal) metallic emitter model. The traditional Fowler-Nordheim formulae, which are…

材料科学 · 物理学 2007-05-23 Kazuya Yuasa , Ayumi Shimoi , Ichiro Ohba , Chuhei Oshima

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…

介观与纳米尺度物理 · 物理学 2018-12-18 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…

应用物理 · 物理学 2020-06-16 Mohammad M. Allaham , Richard G. Forbes , Alexander Knapek , Marwan S. Mousa

The kappa-deformed statistics has been studied in many papers. It is naturally important question for us to ask what should the kappa parameter stand for and under what physical situation should the kappa-deformed statistics be suitable for…

统计力学 · 物理学 2015-08-10 Lina Guo , Jiulin Du

We study numerically the thermal conductivity coefficient $\kappa$ as a function of system length $L$ for several different quasi one dimensional models: classical gases of hard spheres with both longitudinal and transverse degrees of…

统计力学 · 物理学 2009-11-10 J. M. Deutsch , Onuttom Narayan

We introduce and define the phenomenological parameter $\kappa$, defined by $\Delta a/g = \kappa \, \Delta(q/m)$, to quantify potential linear coupling between electric charge and gravitational acceleration. A synthesis of existing…

高能物理 - 唯象学 · 物理学 2026-05-13 Renato Vieira dos Santos

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.…

应用物理 · 物理学 2019-05-31 Richard G. Forbes

The classic theory of electron field emission from a cold metal surface due to Fowler and Nordheim (FN) is re-examined and found to violate the validity criteria for the WKB approximation, for electric fields greater than about 1V per…

材料科学 · 物理学 2015-06-24 T. C. Choy , A. H. Harker , A. M. Stoneham

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…

介观与纳米尺度物理 · 物理学 2023-03-22 Richard G. Forbes

Electron emission from nanometric size emitters becomes of increasing interest due to its involvement to sharp electron sources, vacuum breakdown phenomena and various other vacuum nanoelectronics applications. The most commonly used…

材料科学 · 物理学 2016-11-22 Andreas Kyritsakis , Flyura Djurabekova

A consistent framework for studying Standard Model deviations is developed. It assumes that New Physics becomes relevant at some scale beyond the present experimental reach and uses the Effective Field Theory approach by adding…

高能物理 - 唯象学 · 物理学 2015-09-02 Margherita Ghezzi , Raquel Gomez-Ambrosio , Giampiero Passarino , Sandro Uccirati
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