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 20
... space group is P6222 or P6422 . On cooling , the atoms shift to less symmetric positions : ( u , 0,0 ) for silicon and ( x , y , z ) for oxygen ( Table 1 ) . The space groups of the a phase are P3,21 and P3221 and the symmetry is lower ...
... space group is P6222 or P6422 . On cooling , the atoms shift to less symmetric positions : ( u , 0,0 ) for silicon and ( x , y , z ) for oxygen ( Table 1 ) . The space groups of the a phase are P3,21 and P3221 and the symmetry is lower ...
Page 143
... group forms a common corner of two adjacent A - site octahedra and is hydrogen - bonded to a corner of a B - site octahedron in a neighboring chain ( Fig . 2 ) . The symmetry of the high - temperature phase is orthorhombic , space group ...
... group forms a common corner of two adjacent A - site octahedra and is hydrogen - bonded to a corner of a B - site octahedron in a neighboring chain ( Fig . 2 ) . The symmetry of the high - temperature phase is orthorhombic , space group ...
Page 195
... space group . Depending on which generators are , in fact , combined with time reversal 7 , several magnetic groups are consistent with the space group . We designate them by three signs , cor- responding respectively to the three ...
... space group . Depending on which generators are , in fact , combined with time reversal 7 , several magnetic groups are consistent with the space group . We designate them by three signs , cor- responding respectively to the three ...
Contents
Preface | 1 |
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Copyright | |
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Other editions - View all
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 Co₂SiO4 Coey components composition coupling crystal field crystal structure crystallographic decreases density disordered Dolino Earth Planet electron entropy equilibrium experimental Fe² Fe2+ Fe2SiO4 Fe³ feldspar ferromagnetic free energy Fuess Geophys Ghose grunerite high-spin ilvaite inc phase incommensurate phase interactions ions Jeanloz Landau theory lattice layers Lindsley long-range order low temperatures lower mantle LS transition M2 sites magnetic order Magnetic properties magnetic structure Matsui measurements MgSiO3 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 solid solutions space group spin glass ẞ phase susceptibility symmetry temperature dependence thermal expansion thermodynamic tion transformation X-ray zero pressure