Coincidence Measurement of Quasifree Scattering of 9-keV Electrons on<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>K</mml:mi></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>L</mml:mi></mml:math>Shells of Carbon

Camilloni, R.; Guidoni, A. Giardini; Tiribelli, R.; Stefani, Giovanni

doi:10.1103/physrevlett.29.618

Cited by 146 publications

(36 citation statements)

References 11 publications

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“…It is largely because of the historical devotion of many researchers since the pioneering work of Amaldi et al, 17 Camilloni et al, 18 and Weigold et al 19 that the frontiers have been opened up. Nevertheless, I would boldly declare that EMS is still in its infancy, as may be apparent from the discussions in the preceding sections; EMS is a method of great capabilities.…”

Section: Discussionmentioning

confidence: 99%

“…Once the feasibility of EMS experiments was demonstrated in 1969 by Amaldi et al 17 and later by Camilloni et al 18 and Weigold et al, 19 chemists also became interested and a large number of EMS measurements were performed for a wide variety of targets ranging from atoms to molecules of biochemical interest. Various kinds of successful attempts, such as the experimental determination of the atomic hydrogen wave function, 20 stringent testing of ab initio wave functions,…”

Section: Dfðk; Eþmentioning

confidence: 99%

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Looking at Molecular Orbitals in Three-Dimensional Form: From Dream to Reality

Takahashi¹

2009

Bulletin of the Chemical Society of Japan

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Over the last four decades an experimental method has been developed for looking at electron orbitals in momentum space. The method, called electron momentum spectroscopy (EMS), is based on the electron-impact ionizing reaction near the Bethe ridge at incident electron energies of the order of 1 keV or higher. This account reviews frontiers of the field, involving the first approach to molecular frame EMS that enables one to look at molecular orbitals in three-dimensional form.

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Section: Discussionmentioning

confidence: 99%

Section: Dfðk; Eþmentioning

confidence: 99%

Looking at Molecular Orbitals in Three-Dimensional Form: From Dream to Reality

Takahashi¹

2009

Bulletin of the Chemical Society of Japan

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“…A coincidence electron-scattering technique called electron momentum spectroscopy (EMS)' has emerged as a unique and powerful spectroscopic technique following the pioneering experimental studies of Amaldi et al (I), Camilloni et al (2), and Weigold et al (3) and the insightful theoretical investigations of Neudatchin et al (4) and Glassgold and Ialongo (5). The theoretical framework, originally developed for (p,2p) reactions, was quickly applied to the analysis of (e,2e) experiments.…”

Section: Introductionmentioning

confidence: 99%

Coincidence electron-scattering experiments: the statistics of coincidence counting

Graham¹,

Desjardins²,

Bawagan³

1993

Can. J. Chem.

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. Can. J. Chem. 71, 216 (1993). A new coincidence electron-scattering spectrometer for electron momentum spectroscopy (EMS) experiments is described. The new features include the use of a single 360" cylindrical mirror analyzer (CMA) for energy analysis and a coincidence data acquisition system based on a qVt-multichannel analyser and CAMAC electronics. The CMA energy resolution and coincidence time resolution are 0.32 5 0.03% AE/E fwhm and 3.5 2 0.5 ns fwhm, respectively. The helium 1s orbital binding energy spectrum is obtained at 1000 eV binding energy and 100 eV pass energy, yielding a coincidence binding energy resolution of 1.5 2 0.2 eV fwhm. The coincidence data analysis procedure that is introduced provides experimental verification of some basic statistics of coincidence counting.

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“…The phenomenon of impact ionization of a target by fast electrons is the basis of electron momentum spectroscopy [28][29][30]. The essence of this method is as follows.…”

Section: Discussionmentioning

confidence: 99%

“…The techniques used to obtain these data include Compton scattering of X rays [10][11][12], quasi-free electron scattering at large angles [13,14], positron annihilation [15,16], etc. The investigation of electron momentum distributions in oriented nanowires [17][18][19], ultrathin epitaxial films [20] or bunches of graphene sheets [21] by these methods expands significantly the existing ideas about the interaction of photons and charged particles with electronic structures of small 1D and 2D dimensions.…”

Section: Introductionmentioning

confidence: 99%

Electronic quantum confinement in cylindrical potential well

Baltenkov

Msezane

2016

Eur. Phys. J. D

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Abstract. The effects of quantum confinement on the momentum distribution of electrons confined within a cylindrical potential well have been analyzed. The motivation is to understand specific features of the momentum distribution of electrons when the electron behavior is completely controlled by the parameters of a non-isotropic potential cavity. It is shown that studying the solutions of the wave equation for an electron confined in a cylindrical potential well offers the possibility to analyze the confinement behavior of an electron executing one-or twodimensional motion in the three-dimensional space within the framework of the same mathematical model. Some low-lying electronic states with different symmetries have been considered and the corresponding wave functions have been calculated; the behavior of their nodes and their peak positions with respect to the parameters of the cylindrical well has been analyzed. Additionally, the momentum distributions of electrons in these states have been calculated. The limiting cases of the ratio of the cylinder length H and its radius R 0 have been considered; when the cylinder length H significantly exceeds its radius R 0 and when the cylinder radius is much greater than its length. The cylindrical quantum confinement effects on the momentum distribution of electrons in these potential wells have been analyzed. The possible application of the results obtained here for the description of the general features in the behavior of electrons in nanowires with metallic type of conductivity (or nanotubes) and ultrathin epitaxial films (or graphene sheets) are discussed. Possible experiments are suggested where the quantum confinement can be manifested.

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Coincidence Measurement of Quasifree Scattering of 9-keV Electrons onKandLShells of Carbon

Cited by 146 publications

References 11 publications

Looking at Molecular Orbitals in Three-Dimensional Form: From Dream to Reality

Looking at Molecular Orbitals in Three-Dimensional Form: From Dream to Reality

Coincidence electron-scattering experiments: the statistics of coincidence counting

Electronic quantum confinement in cylindrical potential well

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