Structural and Magnetic Phase Transitions in Minerals |
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Page 101
... Equation of State Like its structure , the equation of state of MgSiO , perovskite has not been measured at conditions prevalent in the lower mantle of the earth . We have therefore computed its density at pressures and densities ...
... Equation of State Like its structure , the equation of state of MgSiO , perovskite has not been measured at conditions prevalent in the lower mantle of the earth . We have therefore computed its density at pressures and densities ...
Page 110
... equation of state II . Shear properties and thermodynamics of the lower mantle . Phys . Earth Planet . Inter . , 45 , 307-323 . Anderson , D.L. and Suzuki , I. , ( 1983 ) Anharmonicity of three minerals at high temperature , J. Geophys ...
... equation of state II . Shear properties and thermodynamics of the lower mantle . Phys . Earth Planet . Inter . , 45 , 307-323 . Anderson , D.L. and Suzuki , I. , ( 1983 ) Anharmonicity of three minerals at high temperature , J. Geophys ...
Page 200
... equation gives the canting angle 0 : < S > J15 - 2J35 < S1 > cos + 2J12 = Aaß tg ( 2 0 ) Aaα - ABB 2 ( 1 ) The two components of the equation are shown in Fig . 12 as functions of 0. The solution is the value where the two curves cross ...
... equation gives the canting angle 0 : < S > J15 - 2J35 < S1 > cos + 2J12 = Aaß tg ( 2 0 ) Aaα - ABB 2 ( 1 ) The two components of the equation are shown in Fig . 12 as functions of 0. The solution is the value where the two curves cross ...
Contents
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Multicritical Phase Relations in Minerals | 60 |
Copyright | |
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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