Spin-Wave Theory and Its Applications to Neutron Scattering and THz Spectroscopy

Spin-Wave Theory and Its Applications to Neutron Scattering and THz Spectroscopy PDF Author: Fishman Randy S
Publisher:
ISBN: 9781643271132
Category :
Languages : en
Pages : 0

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Spin-Wave Theory and Its Applications to Neutron Scattering and THz Spectroscopy

Spin-Wave Theory and Its Applications to Neutron Scattering and THz Spectroscopy PDF Author: Fishman Randy S
Publisher:
ISBN: 9781643271132
Category :
Languages : en
Pages : 0

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Spin-Wave Theory and its Applications to Neutron Scattering and THz Spectroscopy

Spin-Wave Theory and its Applications to Neutron Scattering and THz Spectroscopy PDF Author: Randy S Fishman
Publisher: Morgan & Claypool Publishers
ISBN: 1643271148
Category : Science
Languages : en
Pages : 225

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Book Description
Two of the most powerful tools used to study magnetic materials are inelastic neutron scattering and THz spectroscopy. Because the measured spectra provide a dynamical fingerprint of a magnetic material, those tools enable scientists to unravel the structure of complex magnetic states and to determine the microcscopic interactions that produce them. This book discusses the experimental techniques of inleastic neutron scattering and THz spectroscopy and provides the theoretical tools required to analyze their measurements using spin-wave theory. For most materials, this analysis can resolve the microscopic magnetic interactions such as exchange, anisotropy, and Dzyaloshinskii-Moriya interactions. Assuming a background in elementary statistical mechanics and a familiarity with the quantized harmonic oscillator, this book presents a comprehensive review of spin-wave theory and its applications to both inelastic neutron scattering and THz spectroscopy. Spin-wave theory is used to study several model magnetic systems, including non-collinear magnets such as spirals and cycloids that are produced by geometric frustration, competing exchange interactions, or Dzyaloshinskii-Moriya interactions. Several case studies utilizing spin-wave theory to analyze inelastic neutron-scattering and THz spectroscopy measurements are presented. These include both single crystals and powders and both oxides and molecule-based magnets. In addition to sketching the numerical techniques used to fit dynamical spectra based on microscopic models, this book also contains over 70 exercises that can be performed by beginning graduate students.

Neutron Scattering

Neutron Scattering PDF Author:
Publisher: Academic Press
ISBN: 9780080860107
Category : Science
Languages : en
Pages : 486

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Neutron Scattering

Spin Waves

Spin Waves PDF Author: Daniel D. Stancil
Publisher: Springer Science & Business Media
ISBN: 0387778659
Category : Technology & Engineering
Languages : en
Pages : 348

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Book Description
This book begins by introducing magnetism and discusses magnetic properties of materials, magnetic moments of atoms and ions, and the elements important to magnetism. It covers magnetic susceptibilities and electromagnetic waves in anisotropic dispersive media among other topics. There are problems at the end of each chapter, many of which serve to expand or explain the material in the text. The bibliographies for each chapter give an entry to the research literature.

Frontiers of Neutron Scattering

Frontiers of Neutron Scattering PDF Author: Albert Furrer
Publisher: World Scientific
ISBN: 9814596825
Category : Technology & Engineering
Languages : en
Pages : 272

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Book Description
This book provides ideas on what neutron scattering could look like in the next millennium. In particular, nonconventional, unusual or innovative neutron scattering experiments (from both the scientific and the instrumental point of view) are described which either have novel applications or provide a new insight into science and technology. Chapters on theoretical aspects are adequately included. The scientific and technical areas cover the following topics: novel neutron scattering techniques and perspectives in neutron scattering instrumentation (including sample environment); soft condensed matter, particularly colloids and polymers; materials science and industrial applications; structure and dynamics of multilayers and nanocrystalline materials; dynamical aspects and quantum effects in molecular magnets; strongly correlated electron systems, with emphasis on dynamic correlations in low-dimensional magnets. All these topics are thoroughly introduced and discussed by acknowledged experts. Contents:Principles of Neutron Scattering:Introduction to Neutron Scattering (P Böni & A Furrer)Brillouin Scattering with Neutrons and X-Rays (B Dorner)Instrumentation for Neutron Scattering:Novel Trends in Neutron Optics (I S Anderson et al.)Methods and Perspectives of Neutron Scattering at High Pressure (S Klotz)Soft Condensed Matter:Colloids as Model Systems for Condensed Matter Physics (R Klein)Polymers, Colloids and Microemulsions: Neutron Scattering Experiments (P Schurtenberger, et al.)Molecular Magnetism:Molecular Magnetism: A School of Physics (J Villain)Neutron Scattering of Molecular Magnets (H P Andres et al.)Low-Dimensional Magnetism:Computational Probes of Collective Excitations in Low-Dimensional Magnetism (G Müller & M Karbach)Neutron Scattering (Mostly) from Low Dimensional Magnetic Systems (T G Perring)Multilayers and Nanocrystals:Future Trends in Heterostructure Research with Neutron Scattering (H Zabel)Structure and Dynamics of Nanocrystals (R Hempelmann) Readership: Materials scientists. Keywords:Neutron Scattering;Colloids;Polymers;Material Science;Nanocrystalline Material;Molecular Magnets;Brillouin Scattering;Neutron Optics;Microemulsions;Heterostructure

Neutron Scattering from Magnetic Materials

Neutron Scattering from Magnetic Materials PDF Author: Tapan Chatterji
Publisher: Elsevier
ISBN: 0080457053
Category : Science
Languages : en
Pages : 572

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Book Description
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.

Sonic Thunder

Sonic Thunder PDF Author: W R Matson
Publisher: Morgan & Claypool Publishers
ISBN: 1681749661
Category : Science
Languages : en
Pages : 61

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Book Description
Since the earliest days of human existence, the clash of thunder and trembling of the hills has struck fear into the hearts of seasoned warriors and tribal villagers alike. Great gods, demi-gods, and heroes were created to explain the awesome, mysterious, and incomprehensibly powerful forces of Nature in a feeble attempt to make sense of the world around them. To our advanced scientific minds today, these explanations seem childish and ridiculous; however, the power to flatten thousands of square miles of ancient forest, create massive holes in the Earth itself, and cause mountains to tremble to their very roots are more than enough reason to believe. Indeed, perhaps our scientific advancement has caused us to not fully or completely appreciate the awesome scale and power that Nature can wield against us. The study of shock wave formation and dynamics begins with a study of waves themselves. Simple harmonic motion is used to analyze the physical mechanisms of wave generation and propagation, and the principle of superposition is used to mathematically generate constructive and destructive interference. Further development leads to the shock singularity where a single wave of immense magnitude propagates and decays through various media. Correlations with the fields of thermodynamics, meteorology, crater formation, and acoustics are made, as well as a few special applications. Direct correlation is made to events in Arizona, Siberia, and others. The mathematical requirement for this text includes trigonometry, differential equations, and large series summations, which should be accessible to most beginning and advanced university students. This text should serve well as supplementary material in a course covering discrete wave dynamics, applied thermodynamics, or extreme acoustics.

Spin Waves and Magnetic Excitations

Spin Waves and Magnetic Excitations PDF Author: A. S. Borovik-Romanov
Publisher: North Holland
ISBN:
Category : Science
Languages : en
Pages : 560

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Book Description
Spin Waves and Magnetic Excitations ...

Neutron Scattering in Novel Materials

Neutron Scattering in Novel Materials PDF Author: Albert Furrer
Publisher: World Scientific
ISBN: 9810244444
Category : Technology & Engineering
Languages : en
Pages : 335

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Book Description
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.

Neutrons in Biology

Neutrons in Biology PDF Author: Benno P. Schoenborn
Publisher: Springer Science & Business Media
ISBN: 1489903755
Category : Science
Languages : en
Pages : 462

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Book Description