Structural and Magnetic Phase Transitions in MineralsThis 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 163
Unlike a ferromagnet or a ferrimagnet ( which has two inequivalent sublattices ) ,
there is no net magnetization in the ... For Fe2 + , the superexchange interaction
can be weak and positive ( ferromagnetic ) for Fe - O - Fe bond angles near 90 ° .
Unlike a ferromagnet or a ferrimagnet ( which has two inequivalent sublattices ) ,
there is no net magnetization in the ... For Fe2 + , the superexchange interaction
can be weak and positive ( ferromagnetic ) for Fe - O - Fe bond angles near 90 ° .
Page 171
To solve the magnetic structure and appreciate the reason for the paradoxical
combination of symptoms of ferromagnetic and antiferromagnetic order in
minnesotaite and other ferrous sheet silicates , one must resort to neutron
diffraction .
To solve the magnetic structure and appreciate the reason for the paradoxical
combination of symptoms of ferromagnetic and antiferromagnetic order in
minnesotaite and other ferrous sheet silicates , one must resort to neutron
diffraction .
Page 172
Ferromagnetic reflections appear , however , when a sufficiently large magnetic
field is applied . These minerals seem to have a random magnetic ground state
with short - range ferromagnetic correlations within the sheets but no magnetic ...
Ferromagnetic reflections appear , however , when a sufficiently large magnetic
field is applied . These minerals seem to have a random magnetic ground state
with short - range ferromagnetic correlations within the sheets but no magnetic ...
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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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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
antiferromagnetic appears applied approximation atoms axis Ballet behavior bond calculated cation Chem chemical cluster Coey components composition constant corresponding coupling critical crystal decreases density dependence described determined diffraction direction disordered Dolino effect electron energy equilibrium estimated et al exchange experimental experiments Fe2+ Fe3+ ferromagnetic field function Ghose give given heat ilvaite inc phase increases indicate interactions ions iron lattice layers lower mantle magnetic magnetic order magnetic structure materials measurements Mineral mode Mössbauer natural neutron observed obtained occur octahedral olivines order parameter pairs perovskite phase diagrams phase transition Phys physical pigeonite polytypes positions possible potential predicted pressure properties pyroxenes quartz range respectively Salje sample shown shows silicates solid solution space group spin stability structure symmetry Table temperature theory thermodynamic tion transformation unit variation