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Books > Science & Mathematics > Physics > States of matter > Condensed matter physics (liquids & solids)
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Structural and Magnetic Phase Transitions in Minerals (Paperback, Softcover reprint of the original 1st ed. 1988)
Loot Price: R2,778
Discovery Miles 27 780
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Structural and Magnetic Phase Transitions in Minerals (Paperback, Softcover reprint of the original 1st ed. 1988)
Series: Advances in Physical Geochemistry, 7
Expected to ship within 10 - 15 working days
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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 .
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