Structural and Magnetic Phase Transitions in Minerals |
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Page 11
... crystallographic b axis R3 : parallel to the crystallographic c * axis R1 : perpendicular to both The components of the spontaneous strain tensor are ( Schlenker et al . , 1978 ; Red- fern and Salje , 1987 ) : X1 = X11 = X2 = X22 X3 ...
... crystallographic b axis R3 : parallel to the crystallographic c * axis R1 : perpendicular to both The components of the spontaneous strain tensor are ( Schlenker et al . , 1978 ; Red- fern and Salje , 1987 ) : X1 = X11 = X2 = X22 X3 ...
Page 65
... crystallographic directions are indicated by = and " bonds . " The AE's are calculated by counting A = B and A - B bonds , subject to periodic boundary conditions . 2. A 2 - line relating the ordered phase to a higher - temperature ...
... crystallographic directions are indicated by = and " bonds . " The AE's are calculated by counting A = B and A - B bonds , subject to periodic boundary conditions . 2. A 2 - line relating the ordered phase to a higher - temperature ...
Page 131
... crystallographic unit cells . minimum length among L ,, Ly , and L. The termination error is sufficiently small when Leut is properly chosen ( 8 to 10 Å or greater ) . In the MD calculation of crystalline systems , the basic cell is ...
... crystallographic unit cells . minimum length among L ,, Ly , and L. The termination error is sufficiently small when Leut is properly chosen ( 8 to 10 Å or greater ) . In the MD calculation of crystalline systems , the basic cell is ...
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