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 25
One experimental possibility is to test whether structural data are in favor of a
disordered or of an ordered structure for the B phase . ... A more recent
experiment by Wright and Lehmann ( 1981 ) , using neutrons , favors a
disordered structure .
One experimental possibility is to test whether structural data are in favor of a
disordered or of an ordered structure for the B phase . ... A more recent
experiment by Wright and Lehmann ( 1981 ) , using neutrons , favors a
disordered structure .
Page 218
In our experiments , we found that only the transformation between phases 2H
and 12R could be reversed in a relatively short time , and we focused exclusively
on the experimental investigation of this phase transition . We hope that the ...
In our experiments , we found that only the transformation between phases 2H
and 12R could be reversed in a relatively short time , and we focused exclusively
on the experimental investigation of this phase transition . We hope that the ...
Page 219
Each crystal was examined before and after the experiment by X - ray diffraction .
... Heating Experiments ( X - Ray ) The polytypic transformation 2H - 12R could
be observed directly as a change in the diffraction pattern during heating in the ...
Each crystal was examined before and after the experiment by X - ray diffraction .
... Heating Experiments ( X - Ray ) The polytypic transformation 2H - 12R could
be observed directly as a change in the diffraction pattern during heating in the ...
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Contents
Incommensurate Phase Transitions in Quartz and Berlinite | 21 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 47 |
Multicritical Phase Relations in Minerals | 77 |
Copyright | |
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Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Limited preview - 2012 |
Common terms and phrases
antiferromagnetic appears applied approximation atoms axis Ballet behavior bond calculated cation Chem chemical 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 existence experimental experiments Fe2+ Fe3+ ferromagnetic field function Ghose give given heat ilvaite inc phase increases indicate interactions ions iron lattice layers Lindsley lower mantle magnetic magnetic order 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