Structural and Magnetic Phase Transitions in Minerals |
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Page 61
... chemical component B is nonmagnetic . By assuming that chemical interactions between A and B favor clustering ( A - B nn's increase con- figurational enthalpy AH ) whereas magnetic interactions favor ferromagnetic ordering ( Al - At and ...
... chemical component B is nonmagnetic . By assuming that chemical interactions between A and B favor clustering ( A - B nn's increase con- figurational enthalpy AH ) whereas magnetic interactions favor ferromagnetic ordering ( Al - At and ...
Page 85
... chemical interactions ; ( 2 ) a positive sign for intralayer chemical interactions ; ( 3 ) more than two species ; ( 4 ) data that indicate compositional variation of the J's ; and ( 5 ) data that support the phase diagram topology ...
... chemical interactions ; ( 2 ) a positive sign for intralayer chemical interactions ; ( 3 ) more than two species ; ( 4 ) data that indicate compositional variation of the J's ; and ( 5 ) data that support the phase diagram topology ...
Page 91
... chemical composition of the earth's interior is one of the most important goals pursued by geoscientists . Except in the outermost few kilometers , the distribution of chemical species and their physical phases are not directly ...
... chemical composition of the earth's interior is one of the most important goals pursued by geoscientists . Except in the outermost few kilometers , the distribution of chemical species and their physical phases are not directly ...
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 |
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 approximation atoms axis Bachheimer Ballet behavior berlinite Bukowinski calculated canting Chem chemical Co₂SiO4 Coey components composition coupling crystal field crystal structure crystallographic Davidson decreases density Di-En disordered Dolino Earth Planet electron equilibrium experimental Fe² Fe2+ Fe2SiO4 Fe³ feldspar ferromagnetic free energy Geophys Ghose grunerite high pressure high-spin ilvaite inc phase incommensurate phase interactions ions Jeanloz Landau theory lattice layers Lindsley low temperatures lower mantle LS transition M2 sites magnetic order magnetic phase transitions magnetic properties magnetic structure Matsui measurements MgSiO3 Mineral Mn2SiO4 mode Mössbauer neutron diffraction observed octahedral olivines order parameter orthopyroxene orthorhombic pairs perovskite phase diagrams phase transition Phys polytypes polytypic phases predicted pyroxenes quartz Salje sample shown in Fig silicates SiO2 solid solution space group spin glass ẞ phase susceptibility symmetry temperature dependence thermal expansion thermodynamic tion transformation X-ray zero pressure