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Neutron Scattering Study on the Magnetic Excitations in Mn3Si

Neutron Scattering Study on the Magnetic Excitations in Mn3Si
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Total Pages:
Release: 1987
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Magnetic excitations in an itinerant antiferromagnet Mn3Si were measured up to an energy of 7 kT/sub N/ (15 MeV) at 5.5 K by inelastic scattering of neutrons. The dispersion cones emanating from a pair of magnetic satellite Bragg points intersect at 5 MeV and after that they combine into anisotropic excitations centered at a Brillouin zone boundary.


Magnetic Neutron Scattering: Proceedings Of The Third Summer School On Neutron Scattering

Magnetic Neutron Scattering: Proceedings Of The Third Summer School On Neutron Scattering
Author: Albert Furrer
Publisher: World Scientific
Total Pages: 284
Release: 1995-10-12
Genre: Science
ISBN: 9814548901

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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.


Neutron Scattering from Magnetic Materials

Neutron Scattering from Magnetic Materials
Author: Tapan Chatterji
Publisher: Elsevier
Total Pages: 574
Release: 2005-11-29
Genre: Science
ISBN: 0080457053

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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.


Phase Diagram and Magnetic Excitations of BaFe2-xNixAs2: A Neutron Scattering Study

Phase Diagram and Magnetic Excitations of BaFe2-xNixAs2: A Neutron Scattering Study
Author: Xingye Lu
Publisher: Springer
Total Pages: 127
Release: 2017-07-10
Genre: Technology & Engineering
ISBN: 981104998X

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This book studies the structural, magnetic and electronic properties of, as well as magnetic excitations in, high-temperature BaFe2-xNixAs2 superconductors using neutron diffraction and neutron spectroscopic methods. It describes the precise determination of the phase diagram of BaFe2-xNixAs2, which demonstrates strong magnetoelastic coupling and avoided quantum criticality driven by short-range incommensurate antiferromagnetic order, showing cluster spin glass behavior. It also identifies strong nematic spin correlations in the tetragonal state of uniaxial strained BaFe2-xNixAs2. The nematic correlations have similar temperature and doping dependence as resistivity anisotropy in detwinned samples, which suggests that they are intimately connected. Lastly, it investigates doping evolution of magnetic excitations in overdoped BaFe2-xNixAs2 and discusses the links with superconductivity. This book includes detailed neutron scattering results on BaFe2-xNixAs2 and an introduction to neutron scattering techniques, making it a useful guide for readers pursuing related research.