Anomalous X-ray Scattering. [Review].

Anomalous X-ray Scattering. [Review]. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The availability of tunable synchrotron radiation has made it possible systematically to perform x-ray diffraction studies in regions of anomalous scattering near absorption edges, e.g. in order to derive phase information for crystal structure determination. An overview is given of recent experimental and theoretical work and discuss the properties of the anomalous atomic scattering factor, with emphasis on threshold resonances and damping effects. The results are applied to a discussion of the very strong anomalous dispersion recently observed near the L3 edge in a cesium complex. Also given is an overview of elements and levels where similar behavior can be expected. Finally, the influence of solid state and chemical effects on the absorption edge structure is discussed. 64 references.

Anomalous X-ray Scattering. [Review].

Anomalous X-ray Scattering. [Review]. PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages :

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Book Description
The availability of tunable synchrotron radiation has made it possible systematically to perform x-ray diffraction studies in regions of anomalous scattering near absorption edges, e.g. in order to derive phase information for crystal structure determination. An overview is given of recent experimental and theoretical work and discuss the properties of the anomalous atomic scattering factor, with emphasis on threshold resonances and damping effects. The results are applied to a discussion of the very strong anomalous dispersion recently observed near the L3 edge in a cesium complex. Also given is an overview of elements and levels where similar behavior can be expected. Finally, the influence of solid state and chemical effects on the absorption edge structure is discussed. 64 references.

Resonant Anomalous X-ray Scattering

Resonant Anomalous X-ray Scattering PDF Author: G. Materlik
Publisher: North Holland
ISBN:
Category : Medical
Languages : en
Pages : 698

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Book Description
Hardbound. The collected articles in this book written by recognized experts in the field explore the theoretical and experimental insights and applications of the rapidly expanding science of x-ray resonant interactions. The variety of papers presented reflects the theoretical and experimental progress made possible with tunable, polarized and highly brilliant synchrotron radiation sources. In a rapidly changing field this book provides a single selected reference source on the present understanding of x-ray resonance scattering and its many applications. A detailed subject index provides easy access to the many topics covered by the authors who list over 1000 references.

Anomalous X-Ray Scattering for Materials Characterization

Anomalous X-Ray Scattering for Materials Characterization PDF Author: Yoshio Waseda
Publisher: Springer Science & Business Media
ISBN: 9783540434436
Category : Technology & Engineering
Languages : en
Pages : 232

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Book Description
The production of multi layered thin films with sufficient reliability is a key technology for device fabrication in micro electronics. In the Co/Cu type multi layers, for example, magnetoresistance has been found as large as 80 % at 4. 2 K and 50 % at room temperature. In addition to such gigantic mag netoresistance, these multi layers indicate anti ferromagnetic and ferromag netic oscillation behavior with an increase in the thickness of the layers of the non magnetic component. These interesting properties of the new synthetic flmctional materials are attributed to their periodic and interracial structures at a microscopic level, although the origin of such peculiar features is not fully understood. Information on the surface structure or the number density of atoms in the near surface region may provide better insight. Amorphous alloys, frequently referred to as metallic glasses, are produced by rapid quenching from the melt. The second generation amorphous alloys, called "bulk amorphous alloys", have been discovered in some Pd based and Zr based alloy systems, with a super cooled liquid region at more than 120 K. In these alloy systems, one can obtain a sample thickness of several centime ters. Growing scientific and technological curiosity about the new amorphous alloys has focused on the fundamental factors, such as the atomic scale struc ture, which are responsible for the thermal stability with certain chemical compositions.

Solution of the Phase Problem. I. The Centrosystemmetric Crystal

Solution of the Phase Problem. I. The Centrosystemmetric Crystal PDF Author: Herbert Aaron Hauptman
Publisher:
ISBN:
Category : Crystallography, Mathematical
Languages : en
Pages : 428

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Anomalous X-ray Scattering as a Probe of Biological Structure

Anomalous X-ray Scattering as a Probe of Biological Structure PDF Author: Richard Charles Miake-Lye
Publisher:
ISBN:
Category : Macromolecules
Languages : en
Pages : 360

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Book Description


A Gradient Method for Anomalous Small-angle X-ray Scattering

A Gradient Method for Anomalous Small-angle X-ray Scattering PDF Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 31

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Book Description
A new method of general applicability for analyzing data from anomalous dispersion small-angle X-ray scattering (ASAXS) measurements is described. ASAXS is used as a contrast variation method to label the scattering from a single element in a complex material containing several types of scatterers. The contrast variation is achieved through the anomalous dispersion of X-rays. Thus only one sample is required for a complete analysis. To label a scatterer by ASAXS, the atomic scattering factor of an element in the sample is varied by the selection of photon energies near the absorption edge of the element. Careful selection of the photon energies allows the contrast of only the labeled scatterer to change. Data from several small-angle scattering measurements, each conducted at a fixed energy, are combined in a single analysis. The gradient method, used as an extension to a standard SAXS data analysis method, is demonstrated by isolating the volume fraction size distribution of Cr23C6 in 9Cr-1 MoVNb steel.

Anomalous X-Ray Scattering for Materials Characterization

Anomalous X-Ray Scattering for Materials Characterization PDF Author: Yoshio Waseda
Publisher: Springer
ISBN: 354046008X
Category : Technology & Engineering
Languages : en
Pages : 224

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Book Description
The production of multi layered thin films with sufficient reliability is a key technology for device fabrication in micro electronics. In the Co/Cu type multi layers, for example, magnetoresistance has been found as large as 80 % at 4. 2 K and 50 % at room temperature. In addition to such gigantic mag netoresistance, these multi layers indicate anti ferromagnetic and ferromag netic oscillation behavior with an increase in the thickness of the layers of the non magnetic component. These interesting properties of the new synthetic flmctional materials are attributed to their periodic and interracial structures at a microscopic level, although the origin of such peculiar features is not fully understood. Information on the surface structure or the number density of atoms in the near surface region may provide better insight. Amorphous alloys, frequently referred to as metallic glasses, are produced by rapid quenching from the melt. The second generation amorphous alloys, called "bulk amorphous alloys", have been discovered in some Pd based and Zr based alloy systems, with a super cooled liquid region at more than 120 K. In these alloy systems, one can obtain a sample thickness of several centime ters. Growing scientific and technological curiosity about the new amorphous alloys has focused on the fundamental factors, such as the atomic scale struc ture, which are responsible for the thermal stability with certain chemical compositions.

Analysis of Apparently Anomalous X-ray Scattering Spectra from a PdFesample

Analysis of Apparently Anomalous X-ray Scattering Spectra from a PdFesample PDF Author: William R. Jones
Publisher:
ISBN:
Category :
Languages : en
Pages : 94

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Anomalous X-ray Scattering Studies of Liquids

Anomalous X-ray Scattering Studies of Liquids PDF Author: Karl F. Ludwig
Publisher:
ISBN:
Category :
Languages : en
Pages : 248

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Book Description


Anomalous X-ray scattering

Anomalous X-ray scattering PDF Author: Heinrich B. Stuhrmann
Publisher:
ISBN:
Category :
Languages : de
Pages : 25

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Book Description