Structural and Magnetic Phase Transitions in Minerals |
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Page 46
... composition , P , and T. At constant bulk composition there are only three independent phase composition variables , v ; ( e.g. , X2 , Y2 , Y1 ) . They have an implicit dependence on ɛ ;: d ( Aμ1 , Aμ2 , Aμ3 ) = 0 = ǝAμk / dɛ ; + [ J ...
... composition , P , and T. At constant bulk composition there are only three independent phase composition variables , v ; ( e.g. , X2 , Y2 , Y1 ) . They have an implicit dependence on ɛ ;: d ( Aμ1 , Aμ2 , Aμ3 ) = 0 = ǝAμk / dɛ ; + [ J ...
Page 47
... composition and temperature in orthopyroxenes and clinopyroxenes ( Besan- con , 1981 ; Brown et al . , 1972 ; McCallister et al . , 1976 ; Saxena and Ghose , 1971 ; Saxena et al . , 1974 ; Sykes and Molin , 1986 ; Virgo and Hafner ...
... composition and temperature in orthopyroxenes and clinopyroxenes ( Besan- con , 1981 ; Brown et al . , 1972 ; McCallister et al . , 1976 ; Saxena and Ghose , 1971 ; Saxena et al . , 1974 ; Sykes and Molin , 1986 ; Virgo and Hafner ...
Page 109
... composition most readily reproduces seismic densities and compressibilities . A pure perovskite composition cannot be excluded with cer- tainty but is found to be improbable . The structural properties of the rigid - ion - based model ...
... composition most readily reproduces seismic densities and compressibilities . A pure perovskite composition cannot be excluded with cer- tainty but is found to be improbable . The structural properties of the rigid - ion - based model ...
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