Structural and Magnetic Phase Transitions in Minerals |
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Page 202
... Hamiltonian can be considered without the mixing that they introduce with the other levels . The triplet is then considered as a multiplet with L 1. The selection rules state that the noncubic crystal field acts on this triplet only ...
... Hamiltonian can be considered without the mixing that they introduce with the other levels . The triplet is then considered as a multiplet with L 1. The selection rules state that the noncubic crystal field acts on this triplet only ...
Page 203
... Hamiltonian with the following parameters ( Fig . 13 ) : Ĉhas principal values 0 , 520 , and 1500 K along the axes deduced from the a , b , and c axes through the Euler rotation ( 90,20,0 ) , i.e. , the Z axis is in the bc plane , 70 ...
... Hamiltonian with the following parameters ( Fig . 13 ) : Ĉhas principal values 0 , 520 , and 1500 K along the axes deduced from the a , b , and c axes through the Euler rotation ( 90,20,0 ) , i.e. , the Z axis is in the bc plane , 70 ...
Page 244
... Hamiltonian , 199 , 202 Spin frustration , 157-158 Strain ellipsoid , 9 Strain - induced coupling , 5 Strain tensor , 7-11 Susceptibility , 153-155 , 165 , 201 , 210 , 222 Systems with quasibinary character magnetic systems , 61-63 ...
... Hamiltonian , 199 , 202 Spin frustration , 157-158 Strain ellipsoid , 9 Strain - induced coupling , 5 Strain tensor , 7-11 Susceptibility , 153-155 , 165 , 201 , 210 , 222 Systems with quasibinary character magnetic systems , 61-63 ...
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