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 96
... bond is significantly more compressible than the B - O bond . If the six Si - O bonds are allowed to vary independently , the simple bond compres- sibility argument must be modified . Some of the compression of the lattice is then taken ...
... bond is significantly more compressible than the B - O bond . If the six Si - O bonds are allowed to vary independently , the simple bond compres- sibility argument must be modified . Some of the compression of the lattice is then taken ...
Page 114
... bond length R. Simple ionic bonding models predict that 10Dq x 1 / R5 . However , both experimental measurements and calculations using more sophisticated theoretical approaches ( e.g. , Tossell , 1976 ) give the same 1 / R3 dependence ...
... bond length R. Simple ionic bonding models predict that 10Dq x 1 / R5 . However , both experimental measurements and calculations using more sophisticated theoretical approaches ( e.g. , Tossell , 1976 ) give the same 1 / R3 dependence ...
Page 119
... bond length of 2.16 Å is shown in Fig . 2 ( note that 1 eV = 8066 cm - 1 ) . The calculations were done using a spin - unrestricted formalism that takes into account the different exchange potentials for spin - up ( a ) and spin - down ...
... bond length of 2.16 Å is shown in Fig . 2 ( note that 1 eV = 8066 cm - 1 ) . The calculations were done using a spin - unrestricted formalism that takes into account the different exchange potentials for spin - up ( a ) and spin - down ...
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