Structural and Magnetic Phase Transitions in Minerals |
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Page 51
... Table 3. Olivine solution parametersa Parameter AG + AGE sb. WM2 12 WM2 13 WM2 31 32 24.5 + 0.0105P 24.5 + 0.0105P + ... Table 1. Notation for asymmetric parameters after Davidson ( 1985 ) ; e.g. , G * ( Di - En ) = WM2 ( Xca M2 ) 2 ( 1 ...
... Table 3. Olivine solution parametersa Parameter AG + AGE sb. WM2 12 WM2 13 WM2 31 32 24.5 + 0.0105P 24.5 + 0.0105P + ... Table 1. Notation for asymmetric parameters after Davidson ( 1985 ) ; e.g. , G * ( Di - En ) = WM2 ( Xca M2 ) 2 ( 1 ...
Page 118
... Table 1 . The internal energy change can also be estimated from first - principles electronic structure calculations . The electronic structure of an ( FeO6 ) 1o- cluster as a function of Fe - O bond length was calculated using the self ...
... Table 1 . The internal energy change can also be estimated from first - principles electronic structure calculations . The electronic structure of an ( FeO6 ) 1o- cluster as a function of Fe - O bond length was calculated using the self ...
Page 144
... ( Table 1 ) , resulting in double chains of alternating Fe2 * and Fe3 + ions parallel to the c axis . The charge localization process is accompanied by the forma- tion of Fe2 + -Fe3 + pairs with short metal - metal bonds ( ~ 2.83 A ) in ...
... ( Table 1 ) , resulting in double chains of alternating Fe2 * and Fe3 + ions parallel to the c axis . The charge localization process is accompanied by the forma- tion of Fe2 + -Fe3 + pairs with short metal - metal bonds ( ~ 2.83 A ) in ...
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