Structural and Magnetic Phase Transitions in MineralsThis volume in Advances in Physical Geochemistry presents the latest synthesis of theory and experimental data pertaining to structural and magnetic phase transitions in a variety of geochemically important minerals. The book is the first to cover the impact of this rapidly progressing area of solid state physics in earth sciences and reflects its growing significance for mineralogy and petrology. |
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Page 11
The lattice distortions , described by Q , are dynamically induced by phonon
processes with typical relaxation times of less than 10-10 s . The order parameter
Q can rapidly follow any change of external parameters , such as temperature or
...
The lattice distortions , described by Q , are dynamically induced by phonon
processes with typical relaxation times of less than 10-10 s . The order parameter
Q can rapidly follow any change of external parameters , such as temperature or
...
Page 233
Thermodynamic Description As the phase transition is reversible , each of the two
phases possesses a thermodynamic phase field ... The nonideality of mixing can
now be described by the difference between H and Hmix , called SU . If SU is ...
Thermodynamic Description As the phase transition is reversible , each of the two
phases possesses a thermodynamic phase field ... The nonideality of mixing can
now be described by the difference between H and Hmix , called SU . If SU is ...
Page 235
The chaotic phase and phase 2H represent the phases with the highest and
lowest enthalpies of all polytypes in Pblz . Any other polytypes can then be
described as “ intermediate ” phases between 2H at low temperatures and the
disordered ...
The chaotic phase and phase 2H represent the phases with the highest and
lowest enthalpies of all polytypes in Pblz . Any other polytypes can then be
described as “ intermediate ” phases between 2H at low temperatures and the
disordered ...
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Contents
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Multicritical Phase Relations in Minerals | 60 |
Copyright | |
8 other sections not shown
Other editions - View all
Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Limited preview - 2012 |
Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Snippet view - 1988 |
Common terms and phrases
antiferromagnetic appears applied approximation atoms axis Ballet behavior bond calculated cation Chem chemical cluster Coey components composition constant corresponding coupling critical crystal decreases density dependence described determined diffraction direction disordered Dolino effect electron energy equilibrium estimated et al exchange experimental experiments Fe2+ Fe3+ ferromagnetic field function Ghose give given heat ilvaite inc phase increases indicate interactions ions iron lattice layers lower mantle magnetic magnetic order magnetic structure materials measurements Mineral mode Mössbauer natural neutron observed obtained occur octahedral olivines order parameter pairs perovskite phase diagrams phase transition Phys physical pigeonite polytypes positions possible potential predicted pressure properties pyroxenes quartz range respectively Salje sample shown shows silicates solid solution space group spin stability structure symmetry Table temperature theory thermodynamic tion transformation unit variation