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 61
By assuming that chemical interactions between A and B favor clustering ( A - B nn's increase configurational enthalpy AH ) whereas magnetic interactions favor ferromagnetic ordering ( A1 - A1 and Al - Al nn's reduce AH ) , he showed ...
By assuming that chemical interactions between A and B favor clustering ( A - B nn's increase configurational enthalpy AH ) whereas magnetic interactions favor ferromagnetic ordering ( A1 - A1 and Al - Al nn's reduce AH ) , he showed ...
Page 85
Chemical and magnetic interaction parameters Pairs , Fig . 17c Er ( kJ / 30-2 ) U ( K ) 1 j = k -23.9 6.0 2 i - j , k - 1 - € / 3.33 1.6 3 i ... 1 0 -29.7 4 i ... k , j ... 1 0 -23.2 b a e ,, rth neighbor chemical interaction parameter ...
Chemical and magnetic interaction parameters Pairs , Fig . 17c Er ( kJ / 30-2 ) U ( K ) 1 j = k -23.9 6.0 2 i - j , k - 1 - € / 3.33 1.6 3 i ... 1 0 -29.7 4 i ... k , j ... 1 0 -23.2 b a e ,, rth neighbor chemical interaction parameter ...
Page 91
Chapter 5 Equation of State and Possible Critical Phase Transitions in MgSiOz Perovskite at Lower - Mantle Conditions Mark S.T. Bukowinski and George H. Wolf Introduction Accurate characterization of the chemical composition of the ...
Chapter 5 Equation of State and Possible Critical Phase Transitions in MgSiOz Perovskite at Lower - Mantle Conditions Mark S.T. Bukowinski and George H. Wolf Introduction Accurate characterization of the chemical composition of the ...
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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+ Fe3+ 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