Structural and Magnetic Phase Transitions in Minerals |
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Page 64
... derived from these prototypes by including composition - dependent or many - body interactions to break the symmetry of Fig . 3 . Figures 3a and 3b exhibit the following characteristics : 1. An ordered phase based on an AB ground state ...
... derived from these prototypes by including composition - dependent or many - body interactions to break the symmetry of Fig . 3 . Figures 3a and 3b exhibit the following characteristics : 1. An ordered phase based on an AB ground state ...
Page 73
... derived from the fcc NaCl structure by replacing Cl's with CO3 groups and Na's with Ca's . The CO3 groups have their threefold axes aligned parallel to < 111 > fcc , so both calcite and dolo- mite are rhombohedral ( calcite has space ...
... derived from the fcc NaCl structure by replacing Cl's with CO3 groups and Na's with Ca's . The CO3 groups have their threefold axes aligned parallel to < 111 > fcc , so both calcite and dolo- mite are rhombohedral ( calcite has space ...
Page 81
... derived phase diagrams for the systems CaCO3 - MgCO , and CdCO3 - MgCO3 , respectively . ( c ) " Conjectural and schematic " phase diagram for the system CaCO3 - ZnCO ,. ( d ) Experimentally derived phase diagram for the system CaCO3 ...
... derived phase diagrams for the systems CaCO3 - MgCO , and CdCO3 - MgCO3 , respectively . ( c ) " Conjectural and schematic " phase diagram for the system CaCO3 - ZnCO ,. ( d ) Experimentally derived phase diagram for the system CaCO3 ...
Contents
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Multicritical Phase Relations in Minerals | 60 |
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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 |
Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Snippet view - 1988 |
Common terms and phrases
a-ẞ transition anisotropy ANNNI model antiferromagnetic approximation atoms axis Bachheimer Ballet behavior berlinite Bukowinski calculated canting Chem chemical Co₂SiO4 Coey components composition coupling crystal field crystal structure crystallographic Davidson decreases density Di-En disordered Dolino Earth Planet electron equilibrium experimental Fe² Fe2+ Fe2SiO4 Fe³ feldspar ferromagnetic free energy Geophys Ghose grunerite high pressure high-spin ilvaite inc phase incommensurate phase interactions ions Jeanloz Landau theory lattice layers Lindsley low temperatures lower mantle LS transition M2 sites magnetic order magnetic phase transitions magnetic properties magnetic structure Matsui measurements MgSiO3 Mineral Mn2SiO4 mode Mössbauer neutron diffraction observed octahedral olivines order parameter orthopyroxene orthorhombic pairs perovskite phase diagrams phase transition Phys polytypes polytypic phases predicted pyroxenes quartz Salje sample shown in Fig silicates SiO2 solid solution space group spin glass ẞ phase susceptibility symmetry temperature dependence thermal expansion thermodynamic tion transformation X-ray zero pressure