Band Ferromagnetism

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Band-Ferromagnetism

K. Baberschke,M. Donath,W. Nolting
Band Ferromagnetism Book PDF

Author : K. Baberschke,M. Donath,W. Nolting
Publisher : Springer
Page : 394 pages
File Size : 49,6 Mb
Release : 2008-01-11
Category : Science
ISBN : 9783540446101

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Band-Ferromagnetism by K. Baberschke,M. Donath,W. Nolting Pdf

The fascinating phenomenon ferromagnetism is far from being fully understood, although it surely belongs to the oldest problems of solid state physics. For any investigation it appears recommendable to distinguish between materials whose spontaneous magnetization stems from localized electrons of a partially ?lled atomic shell and those in which it is due to itinerant electrons of a partially ?lled conduction band. In the latter case one speaks of band-ferromagnetism, prototypes of which are the classical ferromagnets Fe, Co, and Ni. The present book is a status report on the remarkable progress that has recently been made towards a microscopic understanding of band-ferromagnetism as an electron c- relation e?ect. The authors of the various chapters of this book “Band-Ferromagnetism: Ground-State and Finite-Temperature Phenomena” participated as selected - perts in the 242nd WE-Heraeus-Seminar (4-6 October 2000) held under almost the same title in Wandlitz near Berlin (Germany). It was the second seminar of this type in Wandlitz. (The ?rst in 1998 dealt with the complementary topic of the physics of local-moment ferromagnets such as Gd). Twenty-six invited spe- ers from ten di?erent countries together with ?fty-?ve further participants, who presented contributions in form of posters, spent three days together discussing in an enthusiastic and fertile manner the hot topics of band-ferromagnetism.

New Developments in Ferromagnetism Research

V. N. Murray
New Developments in Ferromagnetism Research Book PDF

Author : V. N. Murray
Publisher : Nova Publishers
Page : 308 pages
File Size : 53,8 Mb
Release : 2005
Category : Science
ISBN : 1594544611

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New Developments in Ferromagnetism Research by V. N. Murray Pdf

Ferromagnetism is a form of magnetism that can be acquired in an external magnetic field and usually retained in its absence, so that ferromagnetic materials are used to make permanent magnets. A ferromagnetic material may therefore be said to have a high magnetic permeability and susceptibility (which depends upon temperature). Examples are iron, cobalt, nickel, and their alloys. Ultimately, ferromagnetism is caused by spinning electrons in the atoms of the material, which act as tiny weak magnets. They align parallel to each other within small regions of the material to form domains, or areas of stronger magnetism. In an unmagnetised material, the domains are aligned at random so there is no overall magnetic effect. If a magnetic field is applied to that material, the domains align to point in the same direction, producing a strong overall magnetic effect. Permanent magnetism arises if the domains remain aligned after the external field is removed. Ferromagnetic materials exhibit hysteresis. In 2004, it was discovered that a certain allotrope of carbon, nanofoam, exhibited ferromagnetism. The effect dissipates after a few hours at room temperature, but lasts longer at cold temperatures. The material is also a semiconductor. It is thought that other similarly formed materials, of boron and nitrogen, may also be ferromagnetic. This new book rings together leading research from throughout the world.

The Mott Metal-Insulator Transition

Florian Gebhard
The Mott Metal Insulator Transition Book PDF

Author : Florian Gebhard
Publisher : Springer Science & Business Media
Page : 337 pages
File Size : 51,8 Mb
Release : 1997-03-20
Category : Technology & Engineering
ISBN : 9783540614814

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The Mott Metal-Insulator Transition by Florian Gebhard Pdf

Little do we reliably know about the Mott transition, and we are far from a complete understanding of the metal --insulator transition due to electr- electron interactions. Mott summarized his basic ideas on the subject in his wonderful book Metal--Insulator nansitions that first appeared in 1974 11. 1). In his view, a Motk insulator displays a gap for charge-carrying excitations due to electron cowelations, whose importance is expressed by the presence of local magnetic moments regardless of whether or not they are ordered. Since the subject is far from being settled, different opinions on specific aspects of the Mott transition still persist. This book naturally embodies my own understanding of the phenomenon, inspired by the work of the late Sir Kevill Mott. The purpose of this book is twofold: first, to give a detailed presen- tion of the basic theoretical concopts for Mott insulators and, second, to test these ideas against the results from model calculations. For this purpose the Hubbard model and some of its derivatives are best suited. The Hubbard model describes a Mott transition with a mere minimum of tunable par- eters, and various exact statements and even exact solutions exist in certain limiting cases. Exact solutions not only allow us to test our basic ideas, but also help to assess the quality of approxin~ate theories for correlated electron systems.

Band-Ferromagnetism

K. Baberschke,M. Donath,W. Nolting
Band Ferromagnetism Book PDF

Author : K. Baberschke,M. Donath,W. Nolting
Publisher : Springer
Page : 394 pages
File Size : 49,8 Mb
Release : 2001-08-28
Category : Science
ISBN : 3540423893

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Band-Ferromagnetism by K. Baberschke,M. Donath,W. Nolting Pdf

The fascinating phenomenon ferromagnetism is far from being fully understood, although it surely belongs to the oldest problems of solid state physics. For any investigation it appears recommendable to distinguish between materials whose spontaneous magnetization stems from localized electrons of a partially ?lled atomic shell and those in which it is due to itinerant electrons of a partially ?lled conduction band. In the latter case one speaks of band-ferromagnetism, prototypes of which are the classical ferromagnets Fe, Co, and Ni. The present book is a status report on the remarkable progress that has recently been made towards a microscopic understanding of band-ferromagnetism as an electron c- relation e?ect. The authors of the various chapters of this book “Band-Ferromagnetism: Ground-State and Finite-Temperature Phenomena” participated as selected - perts in the 242nd WE-Heraeus-Seminar (4-6 October 2000) held under almost the same title in Wandlitz near Berlin (Germany). It was the second seminar of this type in Wandlitz. (The ?rst in 1998 dealt with the complementary topic of the physics of local-moment ferromagnets such as Gd). Twenty-six invited spe- ers from ten di?erent countries together with ?fty-?ve further participants, who presented contributions in form of posters, spent three days together discussing in an enthusiastic and fertile manner the hot topics of band-ferromagnetism.

Spintronics Handbook, Second Edition: Spin Transport and Magnetism

Evgeny Y. Tsymbal,Igor Žutić
Spintronics Handbook Second Edition Spin Transport and Magnetism Book PDF

Author : Evgeny Y. Tsymbal,Igor Žutić
Publisher : CRC Press
Page : 530 pages
File Size : 43,9 Mb
Release : 2019-05-20
Category : Science
ISBN : 9780429784378

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Spintronics Handbook, Second Edition: Spin Transport and Magnetism by Evgeny Y. Tsymbal,Igor Žutić Pdf

The second edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications.

Recent Progress in Many-Body Theories

Raymond F Bishop,Tobias Brandes,Klaus A Gernoth,Niels R Walet,Yang Xian
Recent Progress in Many Body Theories Book PDF

Author : Raymond F Bishop,Tobias Brandes,Klaus A Gernoth,Niels R Walet,Yang Xian
Publisher : World Scientific
Page : 520 pages
File Size : 43,6 Mb
Release : 2002-12-16
Category : Science
ISBN : 9789814489195

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Recent Progress in Many-Body Theories by Raymond F Bishop,Tobias Brandes,Klaus A Gernoth,Niels R Walet,Yang Xian Pdf

Quantum many-body theory as a discipline in its own right dates largely from the 1950's. It has developed since then to its current position as one of the cornerstones of modern theoretical physics. The field remains vibrant and active, vigorous and exciting. Its most powerful techniques are truly universal. They are constantly expanding to find new fields of application, while advances continue to be made in the more traditional areas. To commemorate the impending 80th birthdays of its two co-inventors, Firtz Coester and Hermann Kümmel, one such technique, namely the coupled cluster method, was especially highlighted at this meeting, the eleventh in the series of International Conferences on Recent Progress in Many-Body Theories. The history of the coupled cluster method as told here mirrors in many ways both the development of the entire discipline of microscopic quantum many-body theory and the history of the series of conferences. The series itself is universally recognised as being the premier series of meetings in this subject area. Its proceedings have always summarised the current state of the art through the lectures of its leading practitioners. The present volume is no exception. No serious researcher in quantum many-body theory or in any field which uses it can afford to be without this volume. Contents:Feenberg Memorial Medal PresentationStrongly Correlated Condensed Matter and Low-Dimensional SystemsQuantum MagnetismPhase TransitionsNuclear and Subnuclear Many-Body ProblemsQuantum Fluids, Superfluids and SuperconductivityCoupled Cluster Methods Readership: Researchers and postgraduate students in quantum many-body theory and its fields of application, especially in condensed matter, nuclear and subnuclear physics. Keywords:

Recent Progress in Many-Body Theories

Raymond F. Bishop,Raymond Norman Wear Bishop,Tobias Brandes,Klaus A. Gernoth,Niels R. Walet,Yang Xiam
Recent Progress in Many Body Theories Book PDF

Author : Raymond F. Bishop,Raymond Norman Wear Bishop,Tobias Brandes,Klaus A. Gernoth,Niels R. Walet,Yang Xiam
Publisher : World Scientific
Page : 520 pages
File Size : 41,9 Mb
Release : 2002-12-01
Category : Science
ISBN : 9789810248888

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Recent Progress in Many-Body Theories by Raymond F. Bishop,Raymond Norman Wear Bishop,Tobias Brandes,Klaus A. Gernoth,Niels R. Walet,Yang Xiam Pdf

Quantum many-body theory as a discipline in its own right dates largely from the 1950's. It has developed since then to its current position as one of the cornerstones of modern theoretical physics. The field remains vibrant and active, vigorous and exciting. Its most powerful techniques are truly universal. They are constantly expanding to find new fields of application, while advances continue to be made in the more traditional areas.

Solid-State Physics

James D. Patterson,Bernard C. Bailey
Solid State Physics Book PDF

Author : James D. Patterson,Bernard C. Bailey
Publisher : Springer
Page : 954 pages
File Size : 49,5 Mb
Release : 2019-02-20
Category : Science
ISBN : 9783319753225

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Solid-State Physics by James D. Patterson,Bernard C. Bailey Pdf

While the standard solid state topics are covered, the basic ones often have more detailed derivations than is customary (with an empasis on crystalline solids). Several recent topics are introduced, as are some subjects normally included only in condensed matter physics. Lattice vibrations, electrons, interactions, and spin effects (mostly in magnetism) are discussed the most comprehensively. Many problems are included whose level is from "fill in the steps" to long and challenging, and the text is equipped with references and several comments about experiments with figures and tables.

Progress in Ferromagnetism Research

V. N. Murray
Progress in Ferromagnetism Research Book PDF

Author : V. N. Murray
Publisher : Nova Publishers
Page : 378 pages
File Size : 53,5 Mb
Release : 2006
Category : Science
ISBN : 1594543356

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Progress in Ferromagnetism Research by V. N. Murray Pdf

Ferromagnetism is a form of magnetism that can be acquired in an external magnetic field and usually retained in its absence, so that ferromagnetic materials are used to make permanent magnets. A ferromagnetic material may therefore be said to have a high magnetic permeability and susceptibility (which depends upon temperature). Examples are iron, cobalt, nickel, and their alloys. Ultimately, ferromagnetism is caused by spinning electrons in the atoms of the material, which act as tiny weak magnets. They align parallel to each other within small regions of the material to form domains, or areas of stronger magnetism. In an unmagnetised material, the domains are aligned at random so there is no overall magnetic effect. If a magnetic field is applied to that material, the domains align to point in the same direction, producing a strong overall magnetic effect. Permanent magnetism arises if the domains remain aligned after the external field is removed. Ferromagnetic materials exhibit hysteresis. In 2004, it was discovered that a certain allotrope of carbon, nanofoam , exhibited ferromagnetism. The effect dissipates after a few hours at room temperature, but lasts longer at cold temperatures. The material is also a semiconductor. It is thought that other similarly formed materials, of boron and nitrogen, may also be ferromagnetic. This new book rings together leading research from throughout the world.

Magnetism: A Synchrotron Radiation Approach

Eric Beaurepaire
Magnetism A Synchrotron Radiation Approach Book PDF

Author : Eric Beaurepaire
Publisher : Springer Science & Business Media
Page : 472 pages
File Size : 55,5 Mb
Release : 2006-06-13
Category : Science
ISBN : 9783540332411

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Magnetism: A Synchrotron Radiation Approach by Eric Beaurepaire Pdf

This volume contains the edited lectures of the fourth Mittelwihr school on "Magnetism and Synchrotron Radiation". This series of events introduces graduate students and nonspecialists from related disciplines to the field of magnetism and magnetic materials with emphasis on synchrotron radiation as an experimental tool of investigation. These lecture notes present in particular the state of the art regarding the analysis of magnetic properties of new materials.

Quantum Theory of Solids

Eoin O'Reilly
Quantum Theory of Solids Book PDF

Author : Eoin O'Reilly
Publisher : CRC Press
Page : 266 pages
File Size : 47,9 Mb
Release : 2002-10-24
Category : Science
ISBN : 074840628X

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Quantum Theory of Solids by Eoin O'Reilly Pdf

Quantum Theory of Solids presents a concisely-structured tour of the theory relating to chemical bonding and its application to the three most significant topics in solid state physics: semiconductors, magnetism, and superconductivity--topics that have seen major advances in recent years. This is a unique treatment that develops the concepts of quantum theory for the solid state from the basics through to an advanced level, encompassing additional quantum mechanics techniques, such as the variational method and perturbation theory. Written at the senior undergraduate/masters level, it provides an exceptional grounding in the subject.

Physics and Chemistry of Graphene (Second Edition)

Toshiaki Enoki,Tsuneya Ando
Physics and Chemistry of Graphene Second Edition Book PDF

Author : Toshiaki Enoki,Tsuneya Ando
Publisher : CRC Press
Page : 348 pages
File Size : 41,6 Mb
Release : 2019-11-01
Category : Science
ISBN : 9780429662799

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Physics and Chemistry of Graphene (Second Edition) by Toshiaki Enoki,Tsuneya Ando Pdf

Graphene has been attracting growing attentions in physics, chemistry, and device applications after the discovery of micromechanically cleaved graphene sheet by A. Geim and K. Novoselov, who were awarded the 2010 Nobel Prize in Physics. The electronic structure of graphene, which is described in terms of massless Dirac fermions, brings about unconventional electronic properties, which are not only an important basic issue in condensed matter physics but also a promising target of cutting-edge electronics/spintronics device applications. Meanwhile, from chemistry aspect, graphene is the extreme of condensed polycyclic hydrocarbon molecules extrapolated to infinite size. Here, the concept on aromaticity, which organic chemists utilize, is applicable. Interesting issues appearing between physics and chemistry are pronounced in nanosized graphene (nanographene), as we recognize the importance of the shape of nanographene in understanding its electronic structure. This book comprehensively discusses the fundamental issues related to the electronic, magnetic, and chemical properties of condensed polycyclic hyodrocarbon molecules, nanographene, and graphene.

Handbook of Thin Films, Five-Volume Set

Hari Singh Nalwa
Handbook of Thin Films Five Volume Set Book PDF

Author : Hari Singh Nalwa
Publisher : Academic Press
Page : 661 pages
File Size : 55,5 Mb
Release : 2001-10-29
Category : Science
ISBN : 9780125129084

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Handbook of Thin Films, Five-Volume Set by Hari Singh Nalwa Pdf

This five-volume handbook focuses on processing techniques, characterization methods, and physical properties of thin films (thin layers of insulating, conducting, or semiconductor material). The editor has composed five separate, thematic volumes on thin films of metals, semimetals, glasses, ceramics, alloys, organics, diamonds, graphites, porous materials, noncrystalline solids, supramolecules, polymers, copolymers, biopolymers, composites, blends, activated carbons, intermetallics, chalcogenides, dyes, pigments, nanostructured materials, biomaterials, inorganic/polymer composites, organoceramics, metallocenes, disordered systems, liquid crystals, quasicrystals, and layered structures. Thin films is a field of the utmost importance in today's materials science, electrical engineering and applied solid state physics; with both research and industrial applications in microelectronics, computer manufacturing, and physical devices. Advanced, high-performance computers, high-definition TV, digital camcorders, sensitive broadband imaging systems, flat-panel displays, robotic systems, and medical electronics and diagnostics are but a few examples of miniaturized device technologies that depend the utilization of thin film materials. The Handbook of Thin Films Materials is a comprehensive reference focusing on processing techniques, characterization methods, and physical properties of these thin film materials.

Introduction to the Theory of Ferromagnetism

Amikam Aharoni
Introduction to the Theory of Ferromagnetism Book PDF

Author : Amikam Aharoni
Publisher : Clarendon Press
Page : 344 pages
File Size : 48,6 Mb
Release : 2000
Category : Science
ISBN : 0198508085

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Introduction to the Theory of Ferromagnetism by Amikam Aharoni Pdf

The present book is the second edition of Amikam Aharoni's Introduction to the Theory of Ferromagnetism, based on a popular lecture course. Like its predecessor, it serves a two-fold purpose: First, it is a textbook for first-year graduate and advanced undergraduate students in both physics and engineering. Second, it explains the basic theoretical principles on which the work is based for practising engineers and experimental physicists who work in the field of magnetism, thus also serving to a certain extent as a reference book. For both professionals and students the emphasis is on introducing the foundations of the different subfields, highlighting the direction and tendency of the most recent research. For this new edition, the author has thoroughly updated the material especially of chapters 9 ('The Nucleation Problem') and 11 ('Numerical Micromagnetics'), which now contain the state of the art required by students and professionals who work on advanced topics of ferromagnetism. From reviews on the 1/e: '... a much needed, thorough introduction and guide to the literature. It is full of wisdom and commentary. Even more, it is Amikam Aharoni at his best - telling a story... He is fun to read... The extensive references provide an advanced review of micromagnetics and supply sources for suitable exercises... there is much for the student to do with the guidance provided by Introduction to the Theory of Ferromagnetism.' A. Arrott, Physics Today, September 1997

Oxford Handbook of Nanoscience and Technology

A.V. Narlikar,Y.Y. Fu
Oxford Handbook of Nanoscience and Technology Book PDF

Author : A.V. Narlikar,Y.Y. Fu
Publisher : Oxford University Press
Page : 957 pages
File Size : 48,9 Mb
Release : 2010-02-11
Category : Language Arts & Disciplines
ISBN : 9780199533053

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Oxford Handbook of Nanoscience and Technology by A.V. Narlikar,Y.Y. Fu Pdf

These three volumes are intended to shape the field of nanoscience and technology and will serve as an essential point of reference for cutting-edge research in the field.