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One of the first books to approach magnetism from a metal physics
perspective, Permanent Magnetism presents research ideas that are
being translated into commercial reality for ferrite and Nd-Fe-B
magnets, and follows the discovery of interstitial, intermetallic
materials. Written by well-known authors, the book contains a
comprehensive yet concise treatment of the fundamental theory
underlying permanent magnetism and illustrates applications with
modern, permanent magnetic materials, including ceramics and
intermetallic compounds. Each chapter contains worked examples to
reinforce applications and the appendices include detailed
mathematics and tabular data on material properties.
Phase transitions in minerals are of interest to a wide spectrum of
scientists - geolo- gists, mineralogists, solid state chemists, and
physicists. We have now reached the point where mean field theory
or Landau Theory of phase transitions as a function of temperature,
pressure, or chemical composition can be usefully applied to
natural materials, resulting in an improved understanding of the
thermodynamics of signifi- cant constituents of the earth. Given
the chemical complexity of so many silicate solid solutions, there
are two distinct approaches to the problems posed by common
minerals: one is to con- centrate on model compounds which could be
synthetic analogs or natural end- members; the other is to work on
typical minerals, with all the disorder and inhomogeneity that this
implies. Model compounds provide the elements needed to build up a
realistic understanding of the thermodynamic behavior of natural
inor- ganic materials in all their complexity. In the first part of
the book, a number of papers are devoted to structural phase
transitions in quartz, Na-and Ca-feldspars, MgSi0 perovskite, and
PbI , where Landau Theory and lattice and molecular 3 2 dynamics
have been used to explain or predict thermodynamic behavior. A
different thermodynamic approach has been used to understand phase
separation and atomic ordering in solid solutions such as olivines,
pyroxenes, rhombohedral carbonates and oxides. E. Salje (Chapter 1)
applies the Landau Theory for the second-order phase transi- tion
to the feldspar end-members albite, NaAlSi0 , and anorthite,
CaAlSi0 .
Covering basic physical concepts, experimental methods, and
applications, this book is an indispensable text on the fascinating
science of magnetism, and an invaluable source of practical
reference data. Accessible, authoritative, and assuming
undergraduate familiarity with vectors, electromagnetism and
quantum mechanics, this textbook is well suited to graduate
courses. Emphasis is placed on practical calculations and numerical
magnitudes - from nanoscale to astronomical scale - focussing on
modern applications, including permanent magnet structures and spin
electronic devices. Each self-contained chapter begins with a
summary, and ends with exercises and further reading. The book is
thoroughly illustrated with over 600 figures to help convey
concepts and explain ideas clearly. Easily digestible tables and
data sheets provide a wealth of useful information on magnetic
properties. The thirty-eight principal magnetic materials, and many
more related compounds, are treated in detail.
Covering basic physical concepts, experimental methods, and
applications, this book is an indispensable text on the fascinating
science of magnetism, and an invaluable source of practical
reference data. Accessible, authoritative, and assuming
undergraduate familiarity with vectors, electromagnetism and
quantum mechanics, this textbook is well suited to graduate
courses. Emphasis is placed on practical calculations and numerical
magnitudes - from nanoscale to astronomical scale - focussing on
modern applications, including permanent magnet structures and spin
electronic devices. Each self-contained chapter begins with a
summary, and ends with exercises and further reading. The book is
thoroughly illustrated with over 600 figures to help convey
concepts and explain ideas clearly. Easily digestible tables and
data sheets provide a wealth of useful information on magnetic
properties. The thirty-eight principal magnetic materials, and many
more related compounds, are treated in detail.
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