Structural and Magnetic Phase Transitions in MineralsS. Ghose, J.M.D. Coey, E. Salje This 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 233
... ANNNI model , which will be discussed later . First , a phase is considered which consists of structural elements that are identical to the 2H or the 12R structure or mixtures of them . The enthalpy of mixing of such a phase is Hmix = x ...
... ANNNI model , which will be discussed later . First , a phase is considered which consists of structural elements that are identical to the 2H or the 12R structure or mixtures of them . The enthalpy of mixing of such a phase is Hmix = x ...
Page 236
... models , like the ANNNI model , which will be discussed later . Further investigations of the lattice dynamics of Pbly are under way to clarify the role of the interlayer interactions in phases 2H and 12R . = Isospin Models a Although ...
... models , like the ANNNI model , which will be discussed later . Further investigations of the lattice dynamics of Pbly are under way to clarify the role of the interlayer interactions in phases 2H and 12R . = Isospin Models a Although ...
Page 237
... ANNNI model with third neighbor interactions ( J , < 0 ; Selke et al . , 1983 ; Barreto and Yeomans , 1985 ; Yeomans and Price , 1986 ) . Polytypes of the sequences 2 ( 12 ) ( > and < 2 ( 12 ) k 2 ( 12 ) k - 1 > , KEN are stable along A ...
... ANNNI model with third neighbor interactions ( J , < 0 ; Selke et al . , 1983 ; Barreto and Yeomans , 1985 ; Yeomans and Price , 1986 ) . Polytypes of the sequences 2 ( 12 ) ( > and < 2 ( 12 ) k 2 ( 12 ) k - 1 > , KEN are stable along A ...
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 |
Common terms and phrases
a-ß transition anisotropy ANNNI model antiferromagnetic atoms axis Bachheimer Ballet behavior berlinite Bukowinski calculated canting cation distributions Chem chemical cluster Coey components composition coupling crystal field crystal structure crystallographic Davidson decreases density disordered Dolino Earth Planet electron equilibrium experimental Fe2+ and Fe3+ Fe2SiO4 feldspar ferromagnetic free energy Geophys Ghose grunerite high-spin ilvaite inc phase incommensurate phase interactions Jeanloz Landau theory lattice layers Lindsley long-range order low temperatures low-spin FeO lower mantle LS transition M2 sites magnetic order magnetic properties magnetic structure Matsui measurements MgSiO3 MgSiOz perovskite Mineral Mn2SiO4 Mössbauer neutron diffraction observed octahedral olivines orbital order parameter orthopyroxene orthorhombic oxides pairs perovskite phase diagrams phase transition Phys polytypes polytypic phases predicted pyroxenes quartz Salje sample shown in Fig silicates SiO2 SiO4 solid solutions space group spin glass susceptibility symmetry temperature dependence thermal expansion thermodynamic tion transformation X-ray zero pressure