Low Angle Polarized Neutron And X Ray Scattering From Magnetic Nanolayers And Nanostructures
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Low Angle Polarized Neutron And X Ray Scattering From Magnetic Nanolayers And Nanostructures
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Author : Amitesh Paul
language : en
Publisher: Springer
Release Date : 2017-08-12
Low Angle Polarized Neutron And X Ray Scattering From Magnetic Nanolayers And Nanostructures written by Amitesh Paul and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-12 with Science categories.
This research monograph presents the latest results related to the characterization of low dimensional systems. Low-angle polarized neutron scattering and X-ray scattering at grazing incidence are used as the two main techniques to explore various physical phenomena of these systems. Special focus is put on systems like thin film transition metal and rare-earth layers, oxide heterostructures, hybrid systems, self-assembled nanostructures and self-diffusion. Readers will gain in-depth knowledge about the usage of specular scattering and off-specular scattering techniques. Investigation of in-plane and out-of-plane structures and magnetism with vector magnetometric information is illustrated comprehensively. The book caters to a wide audience working in the field of nano-dimensional magnetic systems and the neutron and X-ray reflectometry community in particular.
Polarization Analyzed Small Angle Neutron Scattering Of Ferrite Nanoparticles
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Author : Kathryn Hasz
language : en
Publisher:
Release Date : 2014
Polarization Analyzed Small Angle Neutron Scattering Of Ferrite Nanoparticles written by Kathryn Hasz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Metallic oxides categories.
Ferromagnetic nanoparticles offer a range of possible applications in nanotechnology, biomedical practices, and data storage, but important issues exist regarding their true magnetic structure. We have been investigating 9 nm diameter Fe3 O4 nanoparticles and 11 nm diameter CoFe2 O4 nanoparticles coated with an oleic acid shell. The nanoparticles were synthesized by solution chemistry methods and characterized by X-ray diffraction, SQUID, and vibrating sample magnetometry. Polarization Analyzed Small Angle Neutron Scattering (PASANS) was used under various temperatures and applied magnetic fields to investigate the magnetic structure of the particles. PASANS has revealed the iron oxide particles have a canted magnetic shell in high field that disappears in lower field, while the cobalt iron oxide particles are fully canted. We have developed an energy-based model to explain the origins of this canting and shell formation that agrees with the experimental results.
Magnetic Neutron Scattering Proceedings Of The Third Summer School On Neutron Scattering
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Author : Albert Furrer
language : en
Publisher: World Scientific
Release Date : 1995-10-12
Magnetic Neutron Scattering Proceedings Of The Third Summer School On Neutron Scattering written by Albert Furrer and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995-10-12 with Science categories.
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.
Magnetic Small Angle Neutron Scattering
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Author : Andreas Michels
language : en
Publisher: Oxford University Press
Release Date : 2021
Magnetic Small Angle Neutron Scattering written by Andreas Michels and has been published by Oxford University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Science categories.
Magnetic Small-Angle Neutron Scattering provides the first extensive treatment of magnetic small-angle neutron scattering (SANS). The theoretical background required to compute magnetic SANS cross sections and correlation functions related to long-wavelength magnetization structures is laidout. The concepts are scrutinized based on the discussion of experimental neutron data. Regarding prior background knowledge, some familiarity with the basic magnetic interactions and phenomena as well as scattering theory is desired.Besides exposing the different origins of magnetic SANS, and furnishing the basics of the magnetic SANS technique in early chapters, a large part of the book is devoted to a comprehensive treatment of the continuum theory of micromagnetics, as it is relevant for the study of the elastic magneticSANS cross section. Analytical expressions for the magnetization Fourier components allow to highlight the essential features of magnetic SANS and to analyze experimental data both in reciprocal, as well as in real space. Later chapters provide an overview on the magnetic SANS of nanoparticles andso-called complex systems (e.g., ferrofluids, magnetic steels, spin glasses and amorphous magnets). It is this subfield where major progress is expected to be made in the coming years, mainly via the increased usage of numerical micromagnetic simulations (Chapter 7), which is a very promisingapproach for the understanding of the magnetic SANS from systems exhibiting nanoscale spin inhomogeneity.
Neutron Scattering Magnetic And Quantum Phenomena
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Author :
language : en
Publisher: Elsevier
Release Date : 2015-11-29
Neutron Scattering Magnetic And Quantum Phenomena written by and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-11-29 with Science categories.
Neutron Scattering - Magnetic and Quantum Phenomena provides detailed coverage of the application of neutron scattering in condensed matter research. The book's primary aim is to enable researchers in a particular area to identify the aspects of their work where neutron scattering techniques might contribute, conceive the important experiments to be done, assess what is required to carry them out, write a successful proposal for one of the major user facilities, and perform the experiments under the guidance of the appropriate instrument scientist. An earlier series edited by Kurt Sköld and David L. Price, and published in the 1980s by Academic Press as three volumes in the series Methods of Experimental Physics, was very successful and remained the standard reference in the field for several years. This present work has similar goals, taking into account the advances in experimental techniques over the past quarter-century, for example, neutron reflectivity and spin-echo spectroscopy, and techniques for probing the dynamics of complex materials of technological relevance. This volume complements Price and Fernandez-Alonso (Eds.), Neutron Scattering - Fundamentals published in November 2013. Covers the application of neutron scattering techniques in the study of quantum and magnetic phenomena, including superconductivity, multiferroics, and nanomagnetism Presents up-to-date reviews of recent results, aimed at enabling the reader to identify new opportunities and plan neutron scattering experiments in their own field Provides a good balance between theory and experimental techniques Provides a complement to Price and Fernandez-Alonso (Eds.), Neutron Scattering - Fundamentals published in November 2013
Complementarity Between Neutron And Synchrotron X Ray Scattering Proceedings Of The Sixth Summer School Of Neutron Scattering
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Author : Albert Furrer
language : en
Publisher: World Scientific
Release Date : 1998-12-30
Complementarity Between Neutron And Synchrotron X Ray Scattering Proceedings Of The Sixth Summer School Of Neutron Scattering written by Albert Furrer and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998-12-30 with categories.
Understanding and manipulating the properties of materials naturally occurring in our world and artificially produced by modern technologies requires detailed information on their properties on the atomic scale. This information is the basis for any kind of research in physics, chemistry, biology, engineering, metallurgy, and ceramics. Among the various experimental methods, neutron and photon scattering have become the key techniques of choice.This book provides an overview of the complementarity between neutron and synchrotron x-ray scattering. The most important topics are covered, including structure determination, magnetic correlations, polymer dynamics, thin films and multilayers, photoemission studies, etc; they are thoroughly introduced and discussed by experts from both the experimental and the theoretical side.
Skyrmions
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Author : J. Ping Liu
language : en
Publisher: CRC Press
Release Date : 2016-12-08
Skyrmions written by J. Ping Liu and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-12-08 with Science categories.
"The book reviews all the aspects of recent developments in research on skyrmions, from the presentation of the observation and characterization techniques to the description of physical properties and expected applications. It will be of great use for all scientists working in this field." – Albert Fert, 2007 Nobel Laureate in Physics (from the Foreword) A skyrmion is a tiny region of reversed magnetization – quasiparticles since they are not present except in a magnetic state, and also give rise to physics that cannot be described by Maxwell’s equations. These particles are fascinating subjects for theoretical and experimental studies. Moreover, as a new type of magnetic domain structure with special topological structures, skyrmions feature outstanding magnetic and transport properties and may well have applications in data storage and other advanced spintronic devices, as readers will see in this book. Chapters address the relationships between physical properties of condensed matter, such as the AB effect, Berry phase effect, quantum Hall effect, and topological insulators. Overall, it provides a timely introduction to the fundamental aspects and possible applications of magnetic skyrmions to an interdisciplinary audience from condensed matter physics, chemistry, and materials science.
X Ray And Neutron Scattering Studies Of Magnetic Domain Dynamics And Spin Structures
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Author : San-Wen Chen
language : en
Publisher:
Release Date : 2014
X Ray And Neutron Scattering Studies Of Magnetic Domain Dynamics And Spin Structures written by San-Wen Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
The study of magnetic spin structures at nanometer length scales and their dynamics is of both fundamental and technological importance. X-rays and neutrons are penetrating probes that are suitable for studying these in the bulk and the interfaces of the materials. In this thesis, the magnetic domain dynamics are studied by resonant soft x-ray scattering together with x-ray photon correlation spectroscopy. The domain fluctuations reveal when the temperature is close to the phase transition temperature. We find the domain wall dynamics in an antiferromagnet corresponds to a collective motion of spins and exhibit some universal features associated with the jamming behavior in many jammed soft condensed matter systems. We also discuss about the utilization of polarized neutron reflectometry to study the interfacial spin structure in an exchange biased bilayer. The magnetization profiles are obtained which show that some spins are not completely reversible when the magnetic field is reversed. These spins include pinned uncompensated spins in the antiferromagnet and the interfacial spins exchange coupled to those spins. A previously established model was found to reproduce the magnetization profile observed. Finally, we carried out a grazing incidence small angle neutron scattering experiment on an optical grating as a way to test the Distorted Wave Born Approximation (DWBA). DWBA is briefly reviewed and we used it to calculate the scattering intensity of the system.
X Ray And Neutron Scattering Studies Of Artifically Grown Low Dimensional Nanostructures
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Author : Sian Rhiannon Jones
language : en
Publisher:
Release Date : 2010
X Ray And Neutron Scattering Studies Of Artifically Grown Low Dimensional Nanostructures written by Sian Rhiannon Jones and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Complementarity Between Neutron And Synchrotron X Ray Scattering
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Author : Albert Furrer
language : en
Publisher: World Scientific Publishing Company Incorporated
Release Date : 1998
Complementarity Between Neutron And Synchrotron X Ray Scattering written by Albert Furrer and has been published by World Scientific Publishing Company Incorporated this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Science categories.
I. Theoretical principles of neutron and synchrotron X-ray scattering. Neutron- and synchrotron X-ray scattering (the theoretical principles) / W. E. Fischer -- II. Structure determination. Structure determination by powder synchrotron X-ray diffraction / A. N. Fitch -- Structure determination by powder neutron diffraction / E. Gray and E. Kisi -- Seminar on "structure" / K. Yvon -- III. Magnetism. Magnetic neutron and synchrotron X-ray scattering / W. G Stirling -- Magnetic excitations through the eye of the neutron / W. J. L. Buyers -- Topological excitations in low dimensional magnets / H. B. Braun -- Seminar on "magnetism" / G. H. Lander -- IV. Correlated electron systems. Elastic and inelastic X-ray scattering from correlated electrons: A theoretical perspective / M. Altarelli -- SANS measurements on vortices in superconductors. What can we learn? / V. B. Geshkenbein -- Seminar on "electronic structures" / J. Mesot -- V. Multilayers. From thin films to superlattices studied with X-rays and neutrons / D. E. McMorrow -- Seminar on "multilayers" / S. K. Sinha -- VI. Other topics in condensed matter research. From entropy driven motion to reptation - Large scale dynamics in polymer melts / D. Richter -- Small-angle and surface scattering from porous and fractal materials / S. K. Sinha -- Hot topics in condensed matter physics / H. R. Ott -- Seminar on "dynamics" / B. Dorner -- VII. Beam optics. Neutron beam optics / P. Boni -- Synchrotron X-ray beam optics / A. Freund -- VIII. Summary. Summary lecture: Some features of the scattering and absorption of beams of neutrons and beams of X-rays / S. W. Lovesey