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Wednesday, July 29, 2020 | History

3 edition of Diffuse scattering of x-rays and neutrons by fluctuations found in the catalog.

Diffuse scattering of x-rays and neutrons by fluctuations

by M. A. Krivoglaz

  • 378 Want to read
  • 1 Currently reading

Published by Springer in Berlin, New York .
Written in English

    Subjects:
  • Kirkendall effect.,
  • Solids -- Fluctuations.,
  • X-rays -- Diffraction.,
  • X-rays -- Scattering.,
  • Thermal neutrons -- Scattering.

  • Edition Notes

    Includes bibliographical references (p. [269]-284).

    StatementMikhail A. Krivoglaz.
    Classifications
    LC ClassificationsQC176.8.D5 K7513 1996
    The Physical Object
    Paginationxiii, 284 p. :
    Number of Pages284
    ID Numbers
    Open LibraryOL1080316M
    ISBN 103540576274, 0387576274
    LC Control Number94003791

      The results of the experimental study of the critical X-ray scattering (CS) in PbZrTiO3 (PZT40) single-crystal are presented. Temperature evolution of the CS lineshape and intensity was analyzed. It is demonstrated that CS can be described in terms of the mean-field model. Temperature dependences of the peak intensity of the CS, proportional to the static susceptibility, and Cited by: 3. Density fluctuations in metal-hydrogen systems modulate the metallic host lattice. We show that this effect can be studied by Huang diffuse scattering of X-rays and neutrons. Measurements on deuterium interstitially dissolved in niobium are by: 3.

    Diffuse Scattering-the use of off-specular X-Rays and neutrons from surfaces and interfaces-has grown rapidly as a tool for characterizing the surface properties of materials and related fundamental structural properties. It has proven to be especially useful in the understanding of local properties within materials. Neutron scattering, the irregular dispersal of free neutrons by matter, can refer to either the naturally occurring physical process itself or to the man-made experimental techniques that use the natural process for investigating materials. The natural/physical phenomenon is of elemental importance in nuclear engineering and the nuclear sciences.. Regarding the experimental technique.

      In the last decade diffuse scattering studies re-gained their place in the domain of lattice dynamics studies. The use of thermal diffuse scattering becomes particularly efficient when coupled with vibrational spectroscopy, where inelastic x-ray scattering can be advantageous compared to inelastic neutron scattering, and state-of-the-art ab initio by: 4. Diffuse Scattering—the use of off-specular X-Rays and neutrons from surfaces and interfaces—has grown rapidly as a tool for characterizing the surface properties of materials and related fundamental structural properties. It has proven to be especially useful in .


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Diffuse scattering of x-rays and neutrons by fluctuations by M. A. Krivoglaz Download PDF EPUB FB2

About this book In this second volume of his two-volume text on the scattering of x-rays and thermal neutrons from non-ideal (real) crystals, the late Professor M.A.

Krivoglaz considers in great detail the general topic of fluctuations in solids and their elucidation through scattering experiments. Diffuse Scattering - the use of off-specular X-Rays and neutrons from surfaces and interfaces - has grown rapidly as a tool for characterizing the surface properties of materials and related fundamental structural properties.

It has proven to be especially useful in Cited by: Diffuse Scattering of X-Rays and Neutrons in Solid Solutions and One-Component Ordered Crystals Anomalous Scattering Near Second-Order Phase Transitions and Critical Points.

Anomalous Scattering Near Second-Order Phase Transitions and Critical Points. This is followed by the theory of the scattering of X-rays and neutrons by thermal vibrations in a single crystal.

The thermal diffuse scattering of X-rays or neutrons is used principally for the measurement of frequency versus wavevector (phonon dispersion relations).

Although the first measurements were obtained with X-rays, these experiments are carried out more readily with neutrons where the. The scope of this chapter is outlined in Section The next section, Sectionpresents a summary of basic scattering theory containing general formulae for scattering cross sections.

Section contains a general treatment of disorder diffuse scattering and describes the basic mathematics and general qualitative formulation of disorder by: 2. Diffuse Scattering of X-Rays and Neutrons by Fluctuations Mikhail A Krivoglaz Mikhail Alexandrovich Krivoglaz died unexpectedly when he was preparing the English edition of his two-volume monograph on diffraction and diffuse scattering of X-rays and neutrons in imperfect crystals.

The next section, Sectionpresents a summary of basic scattering theory containing general scattering formulae and formulae for cross sections. Section discusses a general treatment of disorder diffuse scattering and describes the basic mathematics and general qualitative formulation of.

Diffuse Scattering. We have so far discussed Bragg diffraction and its use for the study of crystal symmetry and bonding. Other kinds of scattering recorded in electron diffraction patterns include inelastic scattering by phonon, plasmon or electron excitations, and elastic scattering.

The diffuse scattering of x rays by the thermally excited out-of-plane fluctuations of different amphiphilic films was measured for in-plane wavelengths down to the nanometer range, giving access.

A diffuse scattering beam in the direction u′, v′ for example interacts with all beams h + u′, k + v′ where h, k are reflection indices for the average lattice. This gives the diffuse scattering intensity from the slice at position z and this is integrated over z from 0 to H to give the total diffuse scattering.

Scattering experiments, using X-ray, light and neutron sources (in historical order) are key techniques for studying structure and dynamics in systems containing colliods, polymers, surfactants and biological macromolecules, summarized here as soft condensed matter.

The education in this field in Europe is very heterogeneous and frequently inadequate, which severely limits an efficient use of. Off-specular scattering occurs at all interfaces that are not perfectly flat. The degree and form of scattering is determined by the type of height correlations present in the system and their scattering power.

A single element detector may be used to measure the diffuse intensity Cited by: Mikhail Alexandrovich Krivoglaz died unexpectedly when he was preparing the English edition of his two-volume monograph on diffraction and diffuse scatter­ ing of X-rays and neutrons in imperfect crystals.

His death was a heavy blow to all who knew him, who had worked with him and to the world. X-ray and Neutron Reflectivity: Principles and Applications Jean Daillant, Alain Gibaud Springer Science & Business Media, - Science - pagesReviews: 1.

Diffuse X-ray scattering and disorder in p-methyl- N-(p-chlorobenzylidene)aniline, C 14 H 12 ClN (ClMe): analysis via automatic refinement of a Monte Carlo model journal, July Welberry, T. Acta Crystallographica Section A Foundations of Crystallography, Vol.

56, Issue 4. -- In neutron scattering, scattering nuclei are point particles whereas in x-ray scattering, atoms have sizes comparable to the wavelength of the probing radiation. In the very wide angle (diffraction) range, x-ray scattering contains scattering from the electron cloud, whereas neutron scattering does not.

In the SANS range, this is not the Size: 34KB. Diffuse Scattering • Anticipatory (trick) question: If you have an x-ray or neutron detector looking at a small sample volume, which will scatter more x-rays or neutrons into the detector 1 atom atoms or atoms.

X-ray or neutron beam Answer: Depends!File Size: 3MB. NEUTRON MAGNETIC DIFFUSE SCATTERING The elastic diffuse scattering of neutrons from binary alloys with magnetic short-range order is composed of three parts: the nuclear scattering, the magnetic scattering, and the nuclear magnetic interference scattering.

The nuclear scattering length for neutrons is analogous to the x-ray atomic scattering factor for x : Gene E. Ice, James L.

Robertson, Cullie J. Sparks. After a pedagogical introduction on the interaction of X-rays and neutrons with matter, the interplay between the statistics of rough surfaces and interfaces and the scattering of radiation is considered in detail. Specular reflectivity and diffuse scattering are discussed next, in chapters 3 and /5(1).

Fig. 1 X-Ray diffuse scattering by a rough surface with short range undulations (left) and by inhomogeneities in a film limited by surfaces with only long range undulations (right). Kin and KO, are the incident and scattered wave vectors, where the plane of incidence is defined by.

thermal diffuse scattering, but largely ignored due to the fundamental mismatch in energy scales: Å wavelength x-rays have energies ~10 keV, so resolving ~meV phonon excitations is not obvious.+ The idea of using inelastic x-ray scattering as a tool for measuring phonon dispersion was discussed asCited by: 3.Diffuse Scattering - the use of off-specular X-Rays and neutrons from surfaces and interfaces - has grown rapidly as a tool for characterizing the surface properties of materials.

This book reflects the efforts of physicists and materials scientists around the world who have helped to refine the techniques and applications of diffuse scattering.G. Shirane, S. M. Shapiro, J.

M. Tranquada: Neutron Scattering with a Triple-axis Spectrometer W. Schülke: Electron Dynamics by Inelastic X-Ray Scattering M. A. Krivoglaz: Diffuse Scattering of X-Rays and Neutrons by Fluctuations V.

M. Nield & D. A. Keen: Diffuse Neutron Scattering from Crystalline Materials.