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2 edition of Neutron scattering studies of some of the rare earth hydrides found in the catalog.

Neutron scattering studies of some of the rare earth hydrides

Stuart Kevin Paterson Wilson

Neutron scattering studies of some of the rare earth hydrides

by Stuart Kevin Paterson Wilson

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  • 9 Currently reading

Published by University of Birmingham in Birmingham .
Written in English


Edition Notes

Thesis (Ph.D) - University of Birmingham, Dept of Physics, 1984.

StatementStuart Kevin Paterson Wilson.
ID Numbers
Open LibraryOL13825238M

LANTHANIDE MAGNETIC ORDER: NEUTRON SCATTERING STUDIES Fig. 1. T tetragonal crystal structure of the single Cu−O layer R 2CuO4 system. spins occupy a body-centered tetragonal (bct) lattice (a≈A, c˚ ≈A) as shown˚ in fig. 1. The Cu−O bonding within the a−b plane results in strong exchange interactions. Yttrium hydride (YH2) is of interest as a high temperature moderator material because of its superior ability to retain hydrogen at elevated temperatures. Thermal neutron scattering laws for hydrogen bound in yttrium hydride (H-YH2) and yttrium bound in yttrium hydride (Y-YH2) prepared using the ab initio approach are presented.

Neutron diffraction or elastic neutron scattering is the application of neutron scattering to the determination of the atomic and/or magnetic structure of a material. A sample to be examined is placed in a beam of thermal or cold neutrons to obtain a diffraction pattern that provides information of the structure of the material. The technique is similar to X-ray diffraction but due to their. Neutron Applications in Earth, Energy and Environmental Sciences offers a comprehensive overview of the wide ranging applications of neutron scattering techniques to elucidate the fundamental materials properties at the nano-, micro- and meso-scale, which underpin research in the related fields of Earth, Energy and Environmental Sciences.

The book contains 17 chapters with an impressive list of authors cover - ing a wide range of scientific and experimental expertise but, perhaps inevitably, not many have a mainstream Earth science background. Chapter 1 (Parise) is an excellent introduction to the special properties of neutron radiation and emphasises the advantages compared to. Neutron scattering intensities f S i k Intensity S Q,E k4 ⎛⎞⎛⎞σ ∝⎜⎟⎜⎟ ⎝⎠⎝⎠π The measured intensity is proportional to the product of quantities that depend • on the method of measurement, e.g. the choice of E i, • on the strength of the interaction between neutrons and the sample (i.e. on the “scattering File Size: KB.


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Neutron scattering studies of some of the rare earth hydrides by Stuart Kevin Paterson Wilson Download PDF EPUB FB2

Abstract. We have used neutron scattering to study the structure and magnetic ordering of a series of hydrides and deuterides of the rare earth-iron compounds RFe parent RFe 2 ’s have the cubic close packed Laves phase (C15) structure for R Heavier than Nd and order ferrimagnetically at ∿ K with the full free ion moment on each R and ∿μ B /Fe at by: 3.

Introduction. The interaction of hydrogen with the rare-earth metals has been the subject of numerous investigations due to the interesting temperature- and concentration-dependent structures and properties observed in the α-phase solid solutions as well as the various ordered hydride n scattering methods have been crucial for gaining a better understanding of the hydrogen Cited by: Both of these, together with the structures and stoichiometries, as well as information about the sign of the crystal field interaction deduced from susceptibility, low temperature heat capacity and inelastic neutron scattering measurements, indicate that the rare.

Neutron scattering, which is extremely sensitive to light elements, such as hydrogen, has shown great potential in meeting this challenge. In this Minireview, recent advances in neutron studies of hydride species, mainly over the two most typical classes of catalysts—metals and oxides—are : Felipe Polo‐Garzon, Si Luo, Yongqiang Cheng, Katharine L.

Page, Anibal J. Ramirez‐Cuesta, Phillip F. Volume Neutron Scattering in Earth Sciences Hans-Rudolf Wenk, editor i-xx + pages. ISBN ; ISBN13 For over half a century neutron scattering has added valuable information about the structure of materials.

Article Views are the COUNTER-compliant sum of full text article downloads since November (both PDF and HTML) across all institutions and by: In book: Scientific prospects for neutron scattering with present and future neutron sources, Edition: Oct. N° d'ordre:Chapter: Earth Sciences, Publisher: European Science.

Neutron Scattering: Applications in Chemistry, Materials Science and Biology, Vol provides an in-depth overview of the applications of neutron scattering in the fields of physics, materials science, chemistry, biology, the earth sciences, and engineering.

The book describes the tremendous advances in instrumental, experimental, and computational techniques over the past quarter-century. Purchase Neutron Scattering - 1st Edition.

Print Book & E-Book. ISBNBook Edition: 1. 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. Polarized neutron scattering techniques have beem used to study the spatial distribution and temperature dependence of the magnetization induced by an externally applied magnetic field in a single crystal of CeCu(,6).

This heavy fermion compound remains paramagnetic and non-superconducting down to. Neutron scattering studies of 4f antiferromagnetic ordering in the rare earth high Tc superconductors is discussed in Chapter Following a brief summary of the neutron scattering cross section the and systems are discussed in turn, with the spin fluctuations in the superconductors as the main emphasis.

Neutron Scattering Cross SectionCited by: 6. Herein, we exclusivelyfocus on advances in neutron studies related to hydride speciesover two most typical classes of cat-alysts:metals and oxides.

Due to the concise scope of this Minireview,werefer readers to some comprehensive reviews, book chaptersand aspecial issue on neutron applications for heterogeneous catalysis.[6–14] : Felipe Polo‐Garzon, Si Luo, Yongqiang Cheng, Katharine L.

Page, Anibal J. Ramirez‐Cuesta, Phillip F. I needed to use neutron scattering for a proposal, and found this book to get some background information. This book gives all the necessary fundamentals without going into the physics immediately.

I highly recommend this book to everyone who is or is going to use neutron by: THE HYDRIDES OF THE RARE-EARTH METALS. V I Mikheeva and M E Kost ©, The Chemical Society Reaction of the rare-earth metals with hydrogen 28 III. Some peculiar features of the rare-earth element hydrides 34 IV.

Conclusion Export citation and abstract BibTeX by: (Color online) Upper panel: Representative quasielastic neutron scattering spectra of NaBH 4 at K (Q-values, and Å) (black line) and the fit to the data (red line). Neutron diffraction is the most powerful tool to determine the hydrogen location in metal hydrides, and many investigations have been carried out.

This paper reviews recent progress in the structural studies of the Va transition metal — hydrogen system using neutron by: 7. These two groups combined, according to many of their colleagues, became one of the most prestigious teams in the history of neutron scattering.

Beginning inthe experimental neutron scattering program at HFIR produced many important new results such as. developing the neutron polarization analysis technique [5]. @article{osti_, title = {MAGNETIC NEUTRON SCATTERING}, author = {ZALIZNYAK, I A and LEE, S H}, abstractNote = {Much of our understanding of the atomic-scale magnetic structure and the dynamical properties of solids and liquids was gained from neutron-scattering studies.

Elastic and inelastic neutron spectroscopy provided physicists with an unprecedented, detailed access to spin. Neutron scattering has become a key technique for investigating the properties of materials on an atomic scale.

The uniqueness of this method is based on the fact that the wavelength and energy of thermal neutrons ideally match interatomic distances and excitation energies in condensed matter, and thus neutron scattering is able to directly examine the static and dynamic properties of the.

Phase transformations in some rare earth-hydrogen systems. Journal of the Less Common Metals37 (3), DOI: /(74) P. Vorderwisch, S. Hautecler.

Inelastic Neutron Scattering by Cerium Hydrides I. by:   This book provides an introduction to the basic principles of neutron scattering and its application to current problems in condensed matter science and technology.

Experiments on novel materials are particularly emphasized. Rare-Earth Compounds: Magnetic Ordering Phenomena in Rare-Earth Compounds.The Fourteenth Rare Earth Research Conference was held June 28,at North Dakota State University in Fargo.

The meeting was hosted by the College of Science and Mathematics and the Depart­ ment of Physics. Since the first conference was held insub­ sequent meetings have grown inBrand: Springer US.