Neutrons Et Magnétisme(JDN 9),Colleville,France, Mai 2000
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Release | : 2001 |
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Release | : 2001 |
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Author | : C. Fermon |
Publisher | : |
Total Pages | : |
Release | : 2001 |
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ISBN | : |
Author | : Ewald Balcar |
Publisher | : Clarendon Press |
Total Pages | : 241 |
Release | : 1989-01-19 |
Genre | : Science |
ISBN | : 019158911X |
The techniques of magnetic neutron and photon scattering provide information on the electronic properties of materials that is obtainable in no other way. With both techniques information on an atomic scale is obtained on the spatial and temporal developments of the spin and current densities which are fundamental quantities in a basic understanding of magnetic phenomena. To date most magnetic scattering studies have used neutron beams, and the use of photon beams is, relatively speaking, in its infancy. This book is the first monograph devoted to the theory required for a full interpretation of magnetic scattering experiments. It is designed to meet the needs of postgraduates and researchers new to the techniques. At the same time, the requirements of theoretical chemists and physicists are catered for through chapters that present the basic formalism in detail. Special features of the book include extensive tables of quantities that occur frequently in applications of theory, and a number of worked examples.
Author | : Izyumov |
Publisher | : Springer Science & Business Media |
Total Pages | : 349 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 1461536588 |
Detennination of the magnetic structure of magnetic materials is a fundamental problem that can be solved by magnetic neutron diffraction techniques. By magnetic structures we refer to the mutual alignment of the magnetic moments of the atoms in a crystal and their overall alignment relative to the crystallographic axes. Some indirect, tentative data on the magnetic structure of magnetic materials can be obtained from research on their magnetic, mechanical, thermal, and other properties. But only neutron diffraction is a unique direct method of detennining the magnetic structure of a crystal. The magnetic structure of more than one thousand crystals with magnetic order has been studied during 30 years of neutron diffraction research made on reactors in a large number of laboratories in the world. The results of this research work are extensively described in the handbook Magnetic Structures Determined by Neutron Diffraction [176]; in the present book, we will often refer to this handbook. The first extensive theoretical generalization of the principles of magnetic neutron diffraction and the results of research on magnetic structures appeared in the book by Yu. A. Izyumov and R. P. Ozerov Magnetic Neutron Diffraction [24, 134].
Author | : |
Publisher | : Elsevier |
Total Pages | : 284 |
Release | : 2016-11-15 |
Genre | : Technology & Engineering |
ISBN | : 0444638709 |
Handbook of Magnetic Materials covers the expansion of magnetism over the last few decades and its applications in research, notably the magnetism of several classes of novel materials that share with truly ferromagnetic materials the presence of magnetic moments. The book is an ideal reference for scientists active in magnetism research, providing readers with novel trends and achievements in magnetism. Each article contains an extensive description given in graphical and tabular form, with much emphasis placed on the discussion of the experimental material within the framework of physics, chemistry, and material science. Comprises topical review articles written by leading authorities Includes a variety of self-contained introductions to a given area in the field of magnetism without requiring recourse to the published literature Introduces given topics in the field of magnetism Describes novel trends and achievements in magnetism
Author | : Yurii A. Izyumov |
Publisher | : Springer Science & Business Media |
Total Pages | : 607 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 1468407120 |
The inter action between the magnetic field generated by the neutron and the magnetic moment of atoms containing unpaired electrons was experimentally demonstrated for the first time about twenty years ago. The basic theory describing such an in teraction had already been developed and the first nuclear reactors with large available thermal neutron fluxes had recently been con structed. The power of the magnetic neutron interaction for in vestigating the structure of magnetic materials was immediately recognized and put to use where possible. Neutron diffraction, however, was practicable only in countries with nuclear reactors. The earliest neutron determinations of magnetic ordering were hence primarily carried out at Oak Ridge and Brookhaven in the US, at Chalk River in Canada and at Harwell in England. Diffraction patterns from polycrystalline ferromagnets and antiferromagnets are interpretable if produced by simple spin arrays. More complex magnetic scattering patterns could often be unravelled, in terms of a three-dimensional array of atomic moments, if the specimen studied is a single crystal. The devel opment of sophisticated cryogenic equipment, with independently alignable magnetic fields, opened the way to greater complexity in the magnetic structures that could be successfully determined, as did also the introduction of polarized neutron beams. By the end of the 'sixties, many countries were contributing significantly to neutron diffraction studies of a wide variety of magnetic materials.
Author | : |
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Total Pages | : 266 |
Release | : 2014 |
Genre | : |
ISBN | : 9782759812486 |
Author | : |
Publisher | : Academic Press |
Total Pages | : 505 |
Release | : 1987-08-04 |
Genre | : Science |
ISBN | : 0080860109 |
Neutron Scattering
Author | : Tapan Chatterji |
Publisher | : Elsevier |
Total Pages | : 574 |
Release | : 2005-11-29 |
Genre | : Science |
ISBN | : 0080457053 |
Neutron Scattering from Magnetic Materials is a comprehensive account of the present state of the art in the use of the neutron scattering for the study of magnetic materials. The chapters have been written by well-known researchers who are at the forefront of this field and have contributed directly to the development of the techniques described. Neutron scattering probes magnetic phenomena directly. The generalized magnetic susceptibility, which can be expressed as a function of wave vector and energy, contains all the information there is to know about the statics and dynamics of a magnetic system and this quantity is directly related to the neutron scattering cross section. Polarized neutron scattering techniques raise the sophistication of measurements to even greater levels and gives additional information in many cases. The present book is largely devoted to the application of polarized neutron scattering to the study of magnetic materials. It will be of particular interest to graduate students and researchers who plan to investigate magnetic materials using neutron scattering. · Written by a group of scientist who have contributed directly in developing the techniques described.· A complete treatment of the polarized neutron scattering not available in literature.· Gives practical hits to solve magnetic structure and determine exchange interactions in magnetic solids.· Application of neutron scattering to the study of the novel electronic materials.
Author | : I︠U︡riĭ Aleksandrovich Izi︠u︡mov |
Publisher | : Springer |
Total Pages | : 624 |
Release | : 1970 |
Genre | : Gardening |
ISBN | : |
The inter action between the magnetic field generated by the neutron and the magnetic moment of atoms containing unpaired electrons was experimentally demonstrated for the first time about twenty years ago. The basic theory describing such an in teraction had already been developed and the first nuclear reactors with large available thermal neutron fluxes had recently been con structed. The power of the magnetic neutron interaction for in vestigating the structure of magnetic materials was immediately recognized and put to use where possible. Neutron diffraction, however, was practicable only in countries with nuclear reactors. The earliest neutron determinations of magnetic ordering were hence primarily carried out at Oak Ridge and Brookhaven in the US, at Chalk River in Canada and at Harwell in England. Diffraction patterns from polycrystalline ferromagnets and antiferromagnets are interpretable if produced by simple spin arrays. More complex magnetic scattering patterns could often be unravelled, in terms of a three-dimensional array of atomic moments, if the specimen studied is a single crystal. The devel opment of sophisticated cryogenic equipment, with independently alignable magnetic fields, opened the way to greater complexity in the magnetic structures that could be successfully determined, as did also the introduction of polarized neutron beams. By the end of the 'sixties, many countries were contributing significantly to neutron diffraction studies of a wide variety of magnetic materials.