Spin-Polarized Two-Electron Spectroscopy of Surfaces

Spin-Polarized Two-Electron Spectroscopy of Surfaces PDF Author: Sergey Samarin
Publisher: Springer
ISBN: 3030006573
Category : Science
Languages : en
Pages : 241

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Book Description
This book presents developments of techniques for detection and analysis of two electrons resulting from the interaction of a single incident electron with a solid surface. Spin dependence in scattering of spin-polarized electrons from magnetic and non-magnetic surfaces is governed by exchange and spin-orbit effects. The effects of spin and angular electron momentum are shown through symmetry of experimental geometries: (i) normal and off normal electron incidence on a crystal surface, (ii) spin polarization directions within mirror planes of the surface, and (iii) rotation and interchange of detectors with respect to the surface normal. Symmetry considerations establish relationships between the spin asymmetry of two-electron distributions and the spin asymmetry of Spectral Density Function of the sample, hence providing information on the spin-dependent sample electronic structure. Detailed energy and angular distributions of electron pairs carry information on the electron-electron interaction and electron correlation inside the solid. The “exchange – correlation hole” associated with Coulomb and exchange electron correlation in solids can be visualized using spin-polarized two-electron spectroscopy. Also spin entanglement of electron pairs can be probed. A description of correlated electron pairs generation from surfaces using other types of incident particles, such as photons, ions, positrons is also presented.

Spin-Polarized Two-Electron Spectroscopy of Surfaces

Spin-Polarized Two-Electron Spectroscopy of Surfaces PDF Author: Sergey Samarin
Publisher: Springer
ISBN: 3030006573
Category : Science
Languages : en
Pages : 241

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Book Description
This book presents developments of techniques for detection and analysis of two electrons resulting from the interaction of a single incident electron with a solid surface. Spin dependence in scattering of spin-polarized electrons from magnetic and non-magnetic surfaces is governed by exchange and spin-orbit effects. The effects of spin and angular electron momentum are shown through symmetry of experimental geometries: (i) normal and off normal electron incidence on a crystal surface, (ii) spin polarization directions within mirror planes of the surface, and (iii) rotation and interchange of detectors with respect to the surface normal. Symmetry considerations establish relationships between the spin asymmetry of two-electron distributions and the spin asymmetry of Spectral Density Function of the sample, hence providing information on the spin-dependent sample electronic structure. Detailed energy and angular distributions of electron pairs carry information on the electron-electron interaction and electron correlation inside the solid. The “exchange – correlation hole” associated with Coulomb and exchange electron correlation in solids can be visualized using spin-polarized two-electron spectroscopy. Also spin entanglement of electron pairs can be probed. A description of correlated electron pairs generation from surfaces using other types of incident particles, such as photons, ions, positrons is also presented.

Low-energy spin-polarised two electron spectroscopy of surfaces and thin films

Low-energy spin-polarised two electron spectroscopy of surfaces and thin films PDF Author: Anthony D. Sergeant
Publisher:
ISBN:
Category : Electron energy loss spectroscopy
Languages : en
Pages : 0

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Book Description


Surface and Interface Science, Volumes 1 and 2

Surface and Interface Science, Volumes 1 and 2 PDF Author: Klaus Wandelt
Publisher: John Wiley & Sons
ISBN: 3527411569
Category : Science
Languages : en
Pages : 1010

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Book Description
Covering interface science from a novel surface science perspective, this unique handbook offers a comprehensive overview of this burgeoning field. Eight topical volumes cover basic concepts and methods, elemental and composite surfaces, solid-gas, solid-liquid and inorganic biological interfaces, as well as applications of surface science in nanotechnology, materials science and molecular electronics. With its broad scope and clear structure, it is ideal as a reference for scientists in the field, as well as an introduction for newcomers.

Electron Spectroscopy for Surface Analysis

Electron Spectroscopy for Surface Analysis PDF Author: H. Ibach
Publisher: Springer Science & Business Media
ISBN: 3642810993
Category : Science
Languages : en
Pages : 265

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Book Description
The development of surface physics and surface chemistry as a science is closely related to the technical development of a number of methods involving electrons either as an excitation source or as an emitted particle carrying characteristic information. Many of these various kinds of electron spectroscopies have become commercially available and have made their way into industrial laboratories. Others are still in an early stage, but may become of increasing importance in the future. In this book an assessment of the various merits and possible drawbacks of the most frequently used electron spectroscopies is attempted. Emphasis is put on prac tical examples and experimental design rather than on theoretical considerations. The book addresses itself to the reader who wishes to know which electron spectroscopy or which combination of different electron spectroscopies he may choose for the particular problems under investigation. After a brief introduction the practical design of electron spectrometers and their figures of merit important for the different applications are discussed in Chapter 2. Chapter 3 deals with electron excited electron spectroscopies which are used for the elemental analysis of surfaces. Structure analysis by electron diffrac tion is described in Chapter 4 with special emphasis on the use of electron diffrac tion for the investigation of surface imperfections. For the application of electron diffraction to surface crystallography in general, the reader is referred to Volume 4 of "Topics in Applied Physics".

Photoelectron Spectroscopy

Photoelectron Spectroscopy PDF Author: Stefan Hüfner
Publisher: Springer Science & Business Media
ISBN: 9783540418023
Category : Science
Languages : en
Pages : 696

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Book Description
The author, S. Hüfner, presents an authoritative and up-to-date introduction to the field by comprehensively treating the electronic structures of atoms, molecules, solids, and surfaces. Brief descriptions are given of inverse photoemission, spin-polarized photoemission and photoelectron diffraction. Experimental aspects are considered throughout the third edition book and the results are carefully interpreted in terms of the theory. A wealth of measured data is presented in tabulator form for easy use by experimentalists. The reader will learn about the basic technique of photoemission spectroscopy and obtain the necessary background for work based on this book.

Polarized Electron/Polarized Photon Physics

Polarized Electron/Polarized Photon Physics PDF Author: Hans Kleinpoppen
Publisher: Springer Science & Business Media
ISBN: 1489914188
Category : Science
Languages : en
Pages : 350

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Book Description
The EPSRC (Engineering and Physical Science Research Committee of the U. K. ) suggested two Workshops (York University, 22-23 September, 1993 and 15-16 April, 1994) for possible development of polarized electron/photon physics as targeted areas of research. The remit of these meetings included identifying research groups and their activities in polarized electron/polarized photon physics, listing relevant existing facilities (particularly electron spin sources and polarimeters), possible joint projects between research groups in the U. K. , recognizing future needs of projects for research of the highest scientific merit and referring to international comparisons of these research activities. Although very diverse but interconnected, the areas of research presented at the Workshops embrace atomic, molecular, surface, and solid state physics. In more detail these areas covered: electron spin correlations and photon polarization correlations in atomic and molecular collisions and photoionization, electron spin effects in scanning tunneling microscopy, surface and interface magnetism from X-ray scattering and polarized Auger electrons (including analysis of domain structures in solids and surfaces), polarized electrons from multiphoton ionization, quasi-atomic effects in solid state physics, dichroism in molecular and surface processes, Faraday rotation and high-field magneto-optics and polarization effects in simultaneous higher order electron-photon excitations. It is obvious from the spectrum of research fields presented at the Workshops that physicists of primarily two communities, namely those studying electron and photon spin interactions with gaseous atomic and molecular targets and those using condensed matter targets for their studies, interacted very closely with each other.

Application of Spin-sensitive Electron Spectroscopies to Investigations of Electronic and Magnetic Properties of Solid Surfaces and Epitaxial Systems

Application of Spin-sensitive Electron Spectroscopies to Investigations of Electronic and Magnetic Properties of Solid Surfaces and Epitaxial Systems PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 5

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Book Description
Research during this year focused on angular dependence of polarization of electrons backscattered from metallic surfaces, as a function of energy loss, using spin-polarized electron energy loss spectroscopy (SPEELS), and on dynamics of metastable He(2[sup 3]S) deexcitation at Xe-covered metallic surfaces using spin-polarized metastable deexcitation spectroscopy (SPMDS). In the SPEELS study, the data from Au, Ag, Mo, and Fe surfaces suggest that all inelastically scattered electrons underwent small-angle inelastic scattering either preceded or followed by large-angle elastic scattering that redirects the incident electron away from the target. The SPMDS study was extended from other gases to include rare=gas adsorbates on Cu(100) and Au(100) surfaces; the spectra from the Xe- metal systems are unlike hose from other systems and may provide new insights into metastable-surface interactions. (DLC).

Photoelectron Spectroscopy

Photoelectron Spectroscopy PDF Author: Shigemasa Suga
Publisher: Springer Nature
ISBN: 3030640736
Category : Science
Languages : en
Pages : 511

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Book Description
This book presents photoelectron spectroscopy as a valuable method for studying the electronic structures of various solid materials in the bulk state, on surfaces, and at buried interfaces. This second edition introduces the advanced technique of high-resolution and high-efficiency spin- and momentum-resolved photoelectron spectroscopy using a novel momentum microscope, enabling high-precision measurements down to a length scale of some tens of nanometers. The book also deals with fundamental concepts and approaches to applying this and other complementary techniques, such as inverse photoemission, photoelectron diffraction, scanning tunneling spectroscopy, as well as photon spectroscopy based on (soft) x-ray absorption and resonance inelastic (soft) x-ray scattering. This book is the ideal tool to expand readers’ understanding of this marvelously versatile experimental method, as well as the electronic structures of metals and insulators.

Photoelectron Spectroscopy

Photoelectron Spectroscopy PDF Author: Stephan Hufner
Publisher:
ISBN: 9783662092811
Category :
Languages : en
Pages : 680

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Book Description


Many-Particle Spectroscopy of Atoms, Molecules, Clusters, and Surfaces

Many-Particle Spectroscopy of Atoms, Molecules, Clusters, and Surfaces PDF Author: J. Berakdar
Publisher: Springer Science & Business Media
ISBN: 9780306465888
Category : Science
Languages : en
Pages : 536

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Book Description
Since the early days of modem physics spectroscopic techniques have been employed as a powerful tool to assess existing theoretical models and to uncover novel phenomena that promote the development of new concepts. Conventionally, the system to be probed is prepared in a well-defined state. Upon a controlled perturbation one measures then the spectrum of a single particle (electron, photon, etc.) emitted from the probe. The analysis of this single particle spectrum yields a wealth of important information on the properties of the system, such as optical and magnetic behaviour. Therefore, such analysis is nowadays a standard tool to investigate and characterize a variety of materials. However, it was clear at a very early stage that real physical compounds consist of many coupled particles that may be excited simultaneously in response to an external perturbation. Yet, the simultaneous (coincident) detection of two or more excited species proved to be a serious technical obstacle, in particular for extended electronic systems such as surfaces. In recent years, however, coincidence techniques have progressed so far as to image the multi-particle excitation spectrum in an impressive detail. Correspondingly, many-body theoretical concepts have been put forward to interpret the experimental findings and to direct future experimental research. This book gives a snapshot of the present status of multi-particle coincidence studies both from a theoretical and an experimental point of view. It also includes selected topical review articles that highlight the achievements and the power of coincident techniques.