Structural and Magnetic Phase Transitions in Minerals |
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Page 79
... shown in Fig . 15 , and their resemblance to Fig . 12d is obvious . Also shown are Fig . 15c , which Gold- smith proposed as a " conjectural and schematic " phase diagram for the CaCO3 - ZnCO , system ( note that Fig . 15c is ...
... shown in Fig . 15 , and their resemblance to Fig . 12d is obvious . Also shown are Fig . 15c , which Gold- smith proposed as a " conjectural and schematic " phase diagram for the CaCO3 - ZnCO , system ( note that Fig . 15c is ...
Page 200
... shown in Fig . 12 as functions of 0. The solution is the value where the two curves cross . Figure 12a corresponds to the case M = Mn . Here à , is weak and < S , > / < S1 > increases with temper- ature ( Fig . 4 ) . Then the exchange ...
... shown in Fig . 12 as functions of 0. The solution is the value where the two curves cross . Figure 12a corresponds to the case M = Mn . Here à , is weak and < S , > / < S1 > increases with temper- ature ( Fig . 4 ) . Then the exchange ...
Page 223
... shown in Fig . 2 . The temperature dependence of the c lattice parameter of the two polytypes 2H and 12R is shown in Fig . 3. The experimental data for the 2H phase agree well with the earlier findings of Sears et al . ( 1979 ) . The ...
... shown in Fig . 2 . The temperature dependence of the c lattice parameter of the two polytypes 2H and 12R is shown in Fig . 3. The experimental data for the 2H phase agree well with the earlier findings of Sears et al . ( 1979 ) . The ...
Contents
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Multicritical Phase Relations in Minerals | 60 |
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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 |
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