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Spin Fluctuations In Itinerant Electron Magnetism

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Spin Fluctuations In Itinerant Electron Magnetism

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Author : Toru Moriya
language : en
Publisher:
Release Date : 1985

Spin Fluctuations In Itinerant Electron Magnetism written by Toru Moriya and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with categories.

Spin Fluctuations In Itinerant Electron Magnetism

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Author : Tōru Moriya
language : en
Publisher: Springer
Release Date : 1985

Spin Fluctuations In Itinerant Electron Magnetism written by Tōru Moriya and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1985 with Electron band theory of metals categories.

Itinerant Electron Magnetism Fluctuation Effects

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Author : Dieter Wagner
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Itinerant Electron Magnetism Fluctuation Effects written by Dieter Wagner 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.

A summary of recent developments in theoretical and experimental studies of fluctuation effects in itinerant electron magnets, focusing on novel physical phenomena: soft-mode spin fluctuations and zero-point effects, strong spin anharmonicity, magnetic frustrations in metals, fluctuation effects in Invar alloys and low-dimensional systems. All of these may be important for novel high-technology applications.

Spin Fluctuation Theory Of Itinerant Electron Magnetism

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Author : Yoshinori Takahashi
language : en
Publisher: Springer
Release Date : 2013-04-11

Spin Fluctuation Theory Of Itinerant Electron Magnetism written by Yoshinori Takahashi and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-04-11 with Science categories.

This volume shows how collective magnetic excitations determine most of the magnetic properties of itinerant electron magnets. Previous theories were mainly restricted to the Curie-Weiss law temperature dependence of magnetic susceptibilities. Based on the spin amplitude conservation idea including the zero-point fluctuation amplitude, this book shows that the entire temperature and magnetic field dependence of magnetization curves, even in the ground state, is determined by the effect of spin fluctuations. It also shows that the theoretical consequences are largely in agreement with many experimental observations. The readers will therefore gain a new comprehensive perspective of their unified understanding of itinerant electron magnetism.

Theory Of Itinerant Electron Magnetism

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Author : Jürgen Kübler
language : en
Publisher: Oxford University Press
Release Date : 2000-08-17

Theory Of Itinerant Electron Magnetism written by Jürgen Kübler 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 2000-08-17 with Science categories.

This book, in the broadest sense, is an application of quantum mechanics and statistical mechanics to the field of magnetism. The microscopic theory of many electron systems, which provide the physical understanding of magnetism, is presented in detail. Emphasis is given on how to solve the equations numerically by means of suitable computer programmes, and how to apply them to practical problems arising in mechanical engineering or material sciences.

Dynamic Spin Fluctuation Theory Of Metallic Magnetism

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Author : Nikolai B. Melnikov
language : en
Publisher: Springer
Release Date : 2018-08-02

Dynamic Spin Fluctuation Theory Of Metallic Magnetism written by Nikolai B. Melnikov and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-08-02 with Science categories.

This book presents a theoretical framework for magnetism in ferromagnetic metals and alloys at finite temperatures. The objective of the book is twofold. First, it gives a detailed presentation of the dynamic spin-fluctuation theory that takes into account both local and long-wave spin fluctuations with any frequency. The authors provide a detailed explanation of the fundamental role of quantum spin fluctuations in the mechanism of metallic magnetism and illustrate the theory with concrete examples. The second objective of the book is to give an accurate and self-contained presentation of many-body techniques such as the functional integral method and Green's functions, via a number of worked examples. These computational methods are of great use to solid state physicists working in a range of specialties. The book is intended primarily for researchers, but can also be used as textbook. The introductory chapters offer clear and complete derivations of the fundamentals, which makes the presentation self-contained. The main text is followed by a number of well-organized appendices that contain a detailed presentation of the necessary many-body techniques and computational methods. The book also includes a list of symbols and detailed index. This volume will be of interest to a wide range of physicists interested in magnetism and solid state physics in general, both theoreticians and experimentalists.

Spin Fluctuations In Itinerant Electron Magnetism

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Author : Toru Moriya
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Spin Fluctuations In Itinerant Electron Magnetism written by Toru Moriya 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 Technology & Engineering categories.

Ferromagnetism of metallic systems, especially those including transition metals, has been a controversial subject of modern science for a long time. This controversy sterns from the apparent dual character of the d-electrons responsible for magnetism in transition metals, i.e., they are itinerant elec trons described by band theory in their ground state, while at finite tem peratures they show various properties that have long been attributed to a system consisting of local magnetic moments. The most familiar example of these properties is the Curie-Weiss law of magnetic susceptibility obeyed by almost all ferromagnets above their Curie temperatures. At first the problem seemed to be centered around whether the d-elec trons themselves are localized or itinerant. This question was settled in the 1950s and early 1960s by various experimental investigations, in particular by observations of d-electron Fermi surfaces in ferromagnetic transition metals. These observations are generally consistent with the results of band calculations. Theoretical investigations since then have concentrated on explaining this dual character of d-electron systems, taking account of the effects of electron-electron correlations in the itinerant electron model. The problem in physical terms is to study the spin density fluctuati·ons, which are ne glected in the mean-field or one-electron theory, and their influence on the physical properties.

Spin Fluctuations In Itinerant Electron Magnetism

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