Geometrical Frustration
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Geometrical Frustration
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Author : J. F. Sadoc
language : en
Publisher:
Release Date : 1999-08-12
Geometrical Frustration written by J. F. Sadoc and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999-08-12 with Science categories.
A clear account of how the application of geometrical frustration elucidates the structure and properties of non-periodic materials.
Geometrical Frustration
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Author : Jean-François Sadoc
language : en
Publisher: Cambridge University Press
Release Date : 2006-11-23
Geometrical Frustration written by Jean-François Sadoc and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-11-23 with Science categories.
This book shows how the concept of geometrical frustration can be used to elucidate the structure and properties of nonperiodic materials such as metallic glasses, quasicrystals, amorphous semiconductors and complex liquid crystals. Examples and idealized models introduce geometric frustration, illustrating how it can be used to identify ordered and defective regions in real materials. The book goes on to show how these principles can also be used to model physical properties of materials, in particular specific volume, melting, the structure factor and the glass transition. Final chapters consider geometric frustration in periodic structures with large cells and quasiperiodic order. Appendices give all necessary background on geometry, symmetry and tilings. The text considers geometrical frustration at different scales in many types of materials and structures, including metals, amorphous solids, liquid crystals, amphiphiles, cholisteric systems, polymers, phospholipid membranes, atomic clusters, and quasicrystals. This book will be of great interest to researchers in condensed matter physics, materials science and structural chemistry, as well as mathematics and structural biology.
Geometrical Frustration In Quantum And Classical Antiferromagnets
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Author : Fa Wang
language : en
Publisher:
Release Date : 2009
Geometrical Frustration In Quantum And Classical Antiferromagnets written by Fa Wang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with categories.
Handbook Of Magnetic Materials
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Author : K.H.J. Buschow
language : en
Publisher: Gulf Professional Publishing
Release Date : 2001
Handbook Of Magnetic Materials written by K.H.J. Buschow and has been published by Gulf Professional Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with Science categories.
Volume 13 of the Handbook of Magnetic Materials, as the preceding volumes, has a dual purpose. As a textbook it is intended to be of assistance to those who wish to be introduced to a given topic in the field of magnetism without the need to read the vast amount of literature published. As a work of reference it is intended for scientists active in magnetism research. To this dual purpose, Volume 13 of the Handbook is composed of topical review articles written by leading authorities. In each of these articles an extensive description is given in graphical as well as in tabular form, much emphasis being placed on the discussion of the experimental material in the framework of physics, chemistry and material science. In Chapter 1 of this volume a general review of the experimental work on interlayer exchange coupling is presented along with a discussion of the current understanding of this field. There exists an extensive amount of scientific efforts devoted to 4f and 5f systems, including experimental and theoretical, as well as basic and applied research. Chapter 2 aims at reviewing a part of these efforts from the viewpoint of microscopic theory. Special attention is paid to the many new developments in the field. One of the intentions is to bring to the fore the darker areas of DFT theory applications. A review of novel experimental results and first-principle energy-band calculations of MOKE spectra will be presented in Chapter 3. Conventional co-operative phenomena, such as long-range order and elementary excitation, have realisations in nonmagnetic situations. This applies also to the phenomena of geometrical frustration. In Chapter 4 this topic is addressed by developing the basic principles underlying the magnetic phenomena.
Neutron Scattering
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Author : Thomas Brückel
language : en
Publisher: Forschungszentrum Jülich
Release Date : 2007
Neutron Scattering written by Thomas Brückel and has been published by Forschungszentrum Jülich this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Neutrons categories.
Spin Correlations And Excitations In Spin Frustrated Molecular And Molecule Based Magnets
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Author : Zhendong Fu
language : en
Publisher: Forschungszentrum Jülich
Release Date : 2012
Spin Correlations And Excitations In Spin Frustrated Molecular And Molecule Based Magnets written by Zhendong Fu and has been published by Forschungszentrum Jülich this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
Magnetism And Transport Phenomena In Spin Charge Coupled Systems On Frustrated Lattices
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Author : Hiroaki Ishizuka
language : en
Publisher: Springer
Release Date : 2015-07-13
Magnetism And Transport Phenomena In Spin Charge Coupled Systems On Frustrated Lattices written by Hiroaki Ishizuka and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-07-13 with Technology & Engineering categories.
In this thesis, magnetism and transport phenomena in spin-charge coupled systems on frustrated lattices are theoretically investigated, focusing on Ising-spin Kondo lattice models and using a combination of Monte Carlo simulation and other techniques such as variational calculations and perturbation theory. The emphasis of the study is on how the cooperation of spin-charge coupling and geometrical frustration affects the thermodynamic properties of the Kondo lattice models; it presents the emergence of various novel magnetic states, such as the partial disorder, loop-liquid, and spin-cluster states. The thesis also reveals that the magnetic and electronic states and transport properties of these models demonstrate peculiar features, such as Dirac half-metals, anomalous Hall insulators, and spin Hall effects. Study of novel magnetic states and exotic transport phenomena in Kondo lattice systems is a field experiencing rapid progress. The interplay of charge and spin degrees of freedom potentially gives rise to various novel phases and transport phenomena which are related to strongly correlated electrons, frustrated magnetism, and topological states of matter. The results presented in this thesis include numerical calculations that are free from approximations. Accordingly, they provide reliable reference values, both for studying magnetism and transports of related models and for experimentally exploring novel states of matter in metallic magnets.
Geometry In Condensed Matter Physics
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Author : Jean-francois Sadoc
language : en
Publisher: World Scientific
Release Date : 1990-10-27
Geometry In Condensed Matter Physics written by Jean-francois Sadoc and has been published by World Scientific this book supported file pdf, txt, epub, kindle and other format this book has been release on 1990-10-27 with Science categories.
The subject of geometry has become an important ingredient in condensed matter physics. It appears not only to describe, but also to explain structures and their properties. There are two aspects to using geometry: the visual and intuitive understanding, which fosters an immediate grasp of the objects one studies, and the abstract tendency so well developed in the Riemannian manifold theory. Both aspects contribute to the same understanding when they are applied to the main problems occurring in condensed matter sciences. Sophisticated structures found in nature appear naturally as the result of simple constraints which are presented in geometrical terms. Blue phases, amorphous and glassy materials, Frank and Kasper Metals, quasi-crystals are approached in their complexity, using the simple principles of geometry. The relation between biology and liquid crystal sciences, the physics of membranes is a fundamental aspect presented in this book.
Magnetoelectric Response In Low Dimensional Frustrated Spin Systems
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Author : Shinichiro Seki
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-08-27
Magnetoelectric Response In Low Dimensional Frustrated Spin Systems written by Shinichiro Seki and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-27 with Science categories.
Electric control of magnetic properties, or inversely, magnetic control of dielectric properties in solids, is called a magnetoelectric effect and has long been investigated from the point of view of both fundamental physics and potential application. Magnetic and dielectric properties usually show minimal coupling, but it recently has been discovered that magnetically induced ferroelectricity in some spiral magnets enables remarkably large and versatile magnetoelectric responses. To stabilize such helimagnetism, magnetic frustration (competition between different magnetic interactions) is considered the key. In the present work, two of the most typical frustrated spin systems—triangular lattice antiferromagnets and edge-shared chain magnets—have systematically been investigated. Despite the crystallographic simplicity of target systems, rich magnetoelectric responses are ubiquitously observed. The current results published here offer a useful guideline in the search for new materials with unique magnetoelectric functions, and also provide an important basis for a deeper understanding of magnetoelectric phenomena in more complex systems.
Geometry And Thermodynamics
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Author : J.C. Tolédano
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Geometry And Thermodynamics written by J.C. Tolédano and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Distinct scientific communities are usually involved in the three fields of quasi-crystals, of liquid crystals, and of systems having modulated crystalline structures. However, in recent years, there has been a growing feeling that a number of common problems were encountered in the three fields. These comprise the need to recur to "exotic" spaces for describing the type of order of the atomic or molecular configurations of these systems (Euclidian "superspaces" of dimensions greater than 3, or 4-dimensional curved spaces); the recognition that one has to deal with geometrically frustrated systems, and also the occurence of specific excitations (static or dynamic) resulting from the continuous degeneracies of the stable structures considered. In the view of discussing these problems, aNA TO-Advance Research Workshop has assembled in Preveza (Greece), in september 1989,50 experts of the three considered fields (with an equal proportion of theorists and experimentalists). 35 hours of conferences and discussions have led to a more detailed evaluation of the similarities and of the differences in the approaches implemented in the studies of the three types of systems. The papers contained in this NATO-series book provide the substance of this workshop. The reader will find three types of papers. Some very short papers giving the main ideas stated on a subject. Papers comprising 8-10 pages which stick closely to the contents of the talks presented. Longer papers providing more extensively the background and results relative to a given topic. It is worth summarizing the principal outputs of the workshop.