Structural and Magnetic Phase Transitions in Minerals |
From inside the book
Results 1-3 of 14
Page 114
... octahedral coordination site in a silicate or oxide ) that removes the degeneracy of the Fe2 + 3d orbitals . Under an octahedral crystal field , the six 3d orbitals are split into a set with 12g symmetry ( threefold degenerate ) and a ...
... octahedral coordination site in a silicate or oxide ) that removes the degeneracy of the Fe2 + 3d orbitals . Under an octahedral crystal field , the six 3d orbitals are split into a set with 12g symmetry ( threefold degenerate ) and a ...
Page 118
... octahedral Fe2 + 2.16 R ( Fe - 0 ) 2.05 1.95 Estimates from ligand field theoryb 1.85 10Da AU 11,000 10,950 10D q Δυ ... octahedral site . Even in phases in which the Fe2 + cations are in regular octahedral sites , there is still a ...
... octahedral Fe2 + 2.16 R ( Fe - 0 ) 2.05 1.95 Estimates from ligand field theoryb 1.85 10Da AU 11,000 10,950 10D q Δυ ... octahedral site . Even in phases in which the Fe2 + cations are in regular octahedral sites , there is still a ...
Page 181
... octahedral structural units in layer silicates , amphiboles , and pyrox- enes are coupled by weaker antiferromagnetic interactions and exhibit a spin flip transition in an applied field . The ferric and manganous minerals have weak anti ...
... octahedral structural units in layer silicates , amphiboles , and pyrox- enes are coupled by weaker antiferromagnetic interactions and exhibit a spin flip transition in an applied field . The ferric and manganous minerals have weak anti ...
Contents
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Multicritical Phase Relations in Minerals | 60 |
Copyright | |
7 other sections not shown
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