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Author : Ronald Stanley Shemenski
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (25 download)
Download or read book Neutron Magnetic Scattering from a Ni0 Single Crystal written by Ronald Stanley Shemenski and published by . This book was released on 1969 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Kenneth Ross Morash
Publisher :
ISBN 13 :
Total Pages : 300 pages
Book Rating : 4.:/5 (25 download)
Download or read book Magnetic Neutron Scattering from MnO Single Crystals written by Kenneth Ross Morash and published by . This book was released on 1969 with total page 300 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Albert Furrer
Publisher : World Scientific
ISBN 13 : 9814548901
Total Pages : 284 pages
Book Rating : 4.8/5 (145 download)
Download or read book Magnetic Neutron Scattering: Proceedings Of The Third Summer School On Neutron Scattering written by Albert Furrer and published by World Scientific. This book was released on 1995-10-12 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings provide a topical survey of the static and dynamical magnetic properties of condensed matter studied by neutron scattering which has been the key technique in this field for a long time. The static aspects deal with the determination of long-range ordered spin structures and magnetization densities. The dynamic aspects concentrate on the determination of magnetic excitations such as spin waves and crystal-field transitions. The use of polarized-neutron techniques is particularly emphasized. All these topics are thoroughly introduced, methodically discussed, and highlighted with recent experimental results obtained for a vast variety of magnetic materials (e.g., strongly correlated electron systems, multilayers, nanocrystals, molecular complexes, etc.) by acknowledged experts. Other experimental methods (x-ray scattering, muon spin rotation) in the study of magnetism are compared to neutron scattering.
Author : Yurii A. Izyumov
Publisher : Springer Science & Business Media
ISBN 13 : 1468407120
Total Pages : 607 pages
Book Rating : 4.4/5 (684 download)
Download or read book Magnetic Neutron Diffraction written by Yurii A. Izyumov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 607 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Peter Stephen Normile
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (855 download)
Download or read book Neutron and Resonant X-ray Magnetic Scattering Studies of Single-crystal U0!0!0!chi#Pu0!chi#Sb written by Peter Stephen Normile and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Theodore Justin Rowland
Publisher :
ISBN 13 :
Total Pages : 242 pages
Book Rating : 4.:/5 (319 download)
Download or read book Magnetic and Inelastic Scattering of Neutrons by Metals written by Theodore Justin Rowland and published by . This book was released on 1968 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Tapan Chatterji
Publisher : Elsevier
ISBN 13 : 0080457053
Total Pages : 574 pages
Book Rating : 4.0/5 (84 download)
Download or read book Neutron Scattering from Magnetic Materials written by Tapan Chatterji and published by Elsevier. This book was released on 2005-11-29 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : Izyumov
Publisher : Springer Science & Business Media
ISBN 13 : 1461536588
Total Pages : 349 pages
Book Rating : 4.4/5 (615 download)
Download or read book Neutron Diffraction of Magnetic Materials written by Izyumov and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 349 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 : George Edward Bacon
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.X/5 ( download)
Download or read book Neutron Scattering in Chemistry written by George Edward Bacon and published by . This book was released on 1977 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : G. Kostorz
Publisher : Elsevier
ISBN 13 : 1483218244
Total Pages : 550 pages
Book Rating : 4.4/5 (832 download)
Download or read book Neutron Scattering written by G. Kostorz and published by Elsevier. This book was released on 2013-10-22 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Treatise on Materials Science and Technology, Volume 15: Neutron Scattering shows how neutron scattering methods can be used to obtain important information on materials. The book discusses the general principles of neutron scattering; the techniques used in neutron crystallography; and the applications of nuclear and magnetic scattering. The text also describes the measurement of phonons, their role in phase transformations, and their behavior in the presence of crystal defects; and quasi-elastic scattering, with its special merits in the study of microscopic dynamical phenomena in solids and liquids. Special materials problems in neutron devices are also considered. Materials scientists, solid state physicists, physical chemists, and metallurgists will find the book invaluable.
Author : Peter Stephen Normile
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (17 download)
Download or read book Neutron and Resonant X-ray Magnetic Scattering Studies of Single-crystal U1-xPuxSb written by Peter Stephen Normile and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. M. Carpenter
Publisher : Cambridge University Press
ISBN 13 : 0521857813
Total Pages : 539 pages
Book Rating : 4.5/5 (218 download)
Download or read book Elements of Slow-Neutron Scattering written by J. M. Carpenter and published by Cambridge University Press. This book was released on 2015-09-24 with total page 539 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive and up-to-date introduction to the fundamental theory and applications of slow-neutron scattering.
Author : I︠U︡riĭ Aleksandrovich Izi︠u︡mov
Publisher : Springer
ISBN 13 :
Total Pages : 624 pages
Book Rating : 4.3/5 (91 download)
Download or read book Magnetic Neutron Diffraction written by I︠U︡riĭ Aleksandrovich Izi︠u︡mov and published by Springer. This book was released on 1970 with total page 624 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Neutron Scattering Investigation of the Magnetic Order in Single Crystalline BaFe2As2 written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The magnetic structure of BaFe2As2 was determined from polycrystalline neutron diffraction measurements soon after the ThCr2Si2-type FeAs-based superconductors were discovered. Both the moment direction and the in-plane antiferromagnetic wavevector are along the longer a-axis of the orthorhombic unit cell. There is only one combined magnetostructural transition at ≈140 K. However, a later single-crystal neutron diffraction work reported contradicting results. Here, we show neutron diffraction results from a single-crystal sample, grown by a self-flux method, that support the original polycrystalline work.
Author : S. Coad
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (536 download)
Download or read book Neutron Scattering on Single Crystals of Cu?b1?s-x(Zn/Ni)xGeO?b3?s and Other Exotic Low Dimensional Systems written by S. Coad and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Shiva Bhattarai
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)
Download or read book Neutron Scattering Study Of Ni-V And Ce(Ni,Cu)Sn Close To The Onset Of Magnetic Order written by Shiva Bhattarai and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Strongly correlated electron systems are at the borderline of competing phases and can be tuned through different ground states by slight modifications. Therefore, they are good examples to study a quantum phase transition (QPT), to reveal how a quantum critical point (QCP) at zero temperature is responsible for the unconventional properties observed at finite temperatures. QPTs are zero-temperature phase transitions, they are more complex and less understood than common phase transitions at finite temperatures. Examples are lacking, especially in the case where disorder is involved. Recent theories predict the possibility of an exotic quantum critical point in itinerant magnets with induced disorder that is accompanied by a quantum Griffiths phase. To explore such unconventional properties in close neighborhood to a magnetic phase, we aim to reveal the relevant quantum critical fluctuations with neutron scattering. We select systems with different magnetic order and choose as tuning parameter chemical substitution to study the effect of disorder. Such experimental study aims to find key elements of a QCP with disorder. The two systems are the ferromagnetic (FM) alloy, Ni-V, tuned by the V-concentration into a paramagnetic phase, and the non-magnetic Kondo semimetal, Ce(Cu,Ni)Sn, tuned by Cu concentration into an antiferromagnetic state. We apply different neutron scattering techniques and simple models to get essential characteristics of the magnetic correlations and fluctuations close to the QCP. Ni-V is a simple FM-alloy with a random atomic distribution that undergoes a quantum phase transition from a ferromagnetic to a paramagnetic state with sufficient substitution of Ni by V. First indication of a quantum Griffiths phase came from magnetization and [mu]SR data, but the scale of the magnetic clusters remained elusive. Optimized small angle neutron scattering (SANS) data on different polycrystalline Ni-V samples close to the QCP finally show a small magnetic scattering response within the FM state. Using full polarization analysis, we discover short-range correlations of order of several nanometers. In addition, the polarized SANS data show evidence of long-range order. The coexistence of magnetic clusters and long-range ordered domains explain the unusual properties of this disordered FM with a QCP. These results agree with the expectations of a disordered QCP with a quantum Griffith phase. The non-magnetic anisotropic Kondo insulator, CeNiSn, presents a rather unique magnetic excitation spectrum with gaps. Cu doping leads to an antiferromagnetic ordered state with a small magnetic moment. We collected the first inelastic neutron scattering data of a single crystalline sample with Cu concentration at the onset of the magnetic order and revealed the magnetic excitation spectrum at a specific wave vector. It does not show a gap anymore, but magnetic order. In addition, we identify a fluctuation spectrum, including one-dimensional critical magnetic fluctuations. These first data already shed some light on the complex behavior of this Kondo semimetal driven by anisotropic hybridization and disorder. Overall these neutron scattering data reveal relevant quantum fluctuations close to onset of magnetic order that help to characterize the nature of the transition
Download or read book High-Pressure Single-Crystal Neutron Scattering Study of Magnetic and Fe Vacancy Orders in (Tl,Rb)2 Fe4 Se5 Superconductor written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We investigate the magnetic and iron vacancy orders in superconducting (Tl,Rb)2Fe4Se5 single-crystals by using a high-pressure neutron diffraction technique. Similar to the temperature effect, the block antiferromagnetic order gradually decreases upon increasing pressure while the Fe vacancy superstructural order remains intact before its precipitous disappearance at the critical pressure Pc = 8.3 GPa. Combined with previously determined Pc for superconductivity, our phase diagram under pressure reveals the concurrence of the block AFM order, the √5 × √5 iron vacancy order and superconductivity for the 245 superconductor. Lastly, a synthesis of current experimental data in a coherent physical picture is attempted.
