Structural and Magnetic Phase Transitions in Minerals |
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Page 94
The dependence of U and Fth on the lattice configuration X is modeled by assuming that the ions interact through additive central pair potentials ... in the rigid ion approximation ( Gordon and Kim , 1972 ; Waldman and Gordon , 1979 ) .
The dependence of U and Fth on the lattice configuration X is modeled by assuming that the ions interact through additive central pair potentials ... in the rigid ion approximation ( Gordon and Kim , 1972 ; Waldman and Gordon , 1979 ) .
Page 144
( 1984 ) . degree of charge localization increases with decreasing temperature ( Ghose et al . , 1984b , 1985 ) ( Table 1 ) , resulting in double chains of alternating Fe2 + and Fe3 + ions parallel to the c axis .
( 1984 ) . degree of charge localization increases with decreasing temperature ( Ghose et al . , 1984b , 1985 ) ( Table 1 ) , resulting in double chains of alternating Fe2 + and Fe3 + ions parallel to the c axis .
Page 208
The A ions are surrounded by a distorted octahedron , properly speaking by a trigonal antiprism , and the B ions by 12 ... ferrimagnetic behavior in the garnet compounds R2Fe2012 = Fe , R2Fe2012 ( R = rare earth ion ) and Y Fe3O12 .
The A ions are surrounded by a distorted octahedron , properly speaking by a trigonal antiprism , and the B ions by 12 ... ferrimagnetic behavior in the garnet compounds R2Fe2012 = Fe , R2Fe2012 ( R = rare earth ion ) and Y Fe3O12 .
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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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Structural and Magnetic Phase Transitions in Minerals S. Ghose,J.M.D. Coey,E. Salje Limited preview - 2012 |
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+ ferromagnetic field function Ghose give given heat ilvaite inc phase increases indicate interactions ions iron lattice layers Lindsley lower mantle magnetic magnetic order 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
Bibliographic information
| Title | Structural and Magnetic Phase Transitions in Minerals Volume 7 of Advances in physical geochemistry, ISSN 0722-3269 |
| Authors | Subrata Ghose, O. Ballet |
| Editors | Subrata Ghose, J. M. D. Coey, Ekhard K. H. Salje |
| Publisher | Springer-Verlag, 1988 |
| Original from | the University of California |
| Digitized | 11 Apr 2008 |
| ISBN | 3540967109, 9783540967101 |
| Length | 244 pages |
| Export Citation | BiBTeX EndNote RefMan |