Structural and Magnetic Phase Transitions in Minerals |
From inside the book
Results 1-3 of 5
Page 11
... coefficients and the elastic properties of feld- spar has been worked through by Salje ( 1985 ) and will not be discussed in this chap- ter . Note that only terms that depend on both order parameters in the form Q⚫ Qod appear in the ...
... coefficients and the elastic properties of feld- spar has been worked through by Salje ( 1985 ) and will not be discussed in this chap- ter . Note that only terms that depend on both order parameters in the form Q⚫ Qod appear in the ...
Page 11
... coefficients it is clear that x4 mainly reflects the dis- placive order parameter Q , whereas x is more sensitive to Qod . The inverse rela- tions are : Q = -12.451 x4 + 4.361x6 , Qod 1.020x4 + 22.272x6 , = which enables us to determine ...
... coefficients it is clear that x4 mainly reflects the dis- placive order parameter Q , whereas x is more sensitive to Qod . The inverse rela- tions are : Q = -12.451 x4 + 4.361x6 , Qod 1.020x4 + 22.272x6 , = which enables us to determine ...
Page 21
... coefficient exxx and to the elastic constant Cxyz : both are zero in the ẞ phase and appear in the a phase , where their signs change with Dauphiné twinning . The most detailed macroscopic measurements of the order parameter variations ...
... coefficient exxx and to the elastic constant Cxyz : both are zero in the ẞ phase and appear in the a phase , where their signs change with Dauphiné twinning . The most detailed macroscopic measurements of the order parameter variations ...
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