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 169
... Coey , 1985 ) . Half the M1 sites in each chain are vacant , and M2 sites are occupied by Fe3 + in the ideal formula { Fe3 + 5 = 0.5 , Fe3 * } [ Si ] O4 . The ferric iron in the M2 sheets orders antiferromagneti- cally below about 160 K ...
... Coey , 1985 ) . Half the M1 sites in each chain are vacant , and M2 sites are occupied by Fe3 + in the ideal formula { Fe3 + 5 = 0.5 , Fe3 * } [ Si ] O4 . The ferric iron in the M2 sheets orders antiferromagneti- cally below about 160 K ...
Page 180
... ( Coey et al . , 1984a ) . The Néel point of ilvaite is 116 K , and the dominant exchange coupling within the ribbons is antiferromagnetic . A neutron powder study did not detect long - range magnetic ordering of B - site iron at 80 K ...
... ( Coey et al . , 1984a ) . The Néel point of ilvaite is 116 K , and the dominant exchange coupling within the ribbons is antiferromagnetic . A neutron powder study did not detect long - range magnetic ordering of B - site iron at 80 K ...
Page 183
... Coey , J.M.D. ( 1984 ) Mössbauer spectroscopy of silicate minerals . In Chemical Appli- cations of Mössbauer Spectroscopy , edited by G.J. Long , pp . 443-509 . Plenum , New York . Coey , J.M.D. ( 1987a ) Magnetic order in trioctahedral ...
... Coey , J.M.D. ( 1984 ) Mössbauer spectroscopy of silicate minerals . In Chemical Appli- cations of Mössbauer Spectroscopy , edited by G.J. Long , pp . 443-509 . Plenum , New York . Coey , J.M.D. ( 1987a ) Magnetic order in trioctahedral ...
Contents
Preface | 1 |
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
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 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