Structural and Magnetic Phase Transitions in Minerals |
From inside the book
Results 1-3 of 72
Page 4
The free energy of the Na - feldspar can then be expressed using the two order parameters lb , and lod , Be ( In the following we drop the index B , of the active representation . ) S Fiot = { aQ2 aQ2 + _bQ4 + 6c9® + ź aculoa + żadlód + ...
The free energy of the Na - feldspar can then be expressed using the two order parameters lb , and lod , Be ( In the following we drop the index B , of the active representation . ) S Fiot = { aQ2 aQ2 + _bQ4 + 6c9® + ź aculoa + żadlód + ...
Page 94
where U ( X ) is the static lattice energy , Fih is the thermal contribution to the free energy , and V is the volume . The thermal contribution to the free energy is calculated in the quasiharmonic approximation Fon ( , X ) = 15hv ( X ) ...
where U ( X ) is the static lattice energy , Fih is the thermal contribution to the free energy , and V is the volume . The thermal contribution to the free energy is calculated in the quasiharmonic approximation Fon ( , X ) = 15hv ( X ) ...
Page 117
Internal Energy Change To first order , the internal energy change AU for the HS – LS transition is simply the energy difference between the * T2g and ' A1g states of the Fez * cation ( ST2g is the spectroscopic state resulting from the ...
Internal Energy Change To first order , the internal energy change AU for the HS – LS transition is simply the energy difference between the * T2g and ' A1g states of the Fez * cation ( ST2g is the spectroscopic state resulting from the ...
What people are saying - Write a review
We haven't found any reviews in the usual places.
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 |
Common terms and phrases
antiferromagnetic appears applied approximation atoms axis Ballet behavior bond calculated cation Chem chemical cluster Coey components composition constant corresponding coupling critical crystal decreases density dependence described determined diffraction direction disordered Dolino effect electron energy equilibrium estimated et al exchange experimental experiments Fe2+ ferromagnetic field function Ghose give given heat ilvaite inc phase increases indicate interactions ions iron lattice layers Lindsley lower mantle magnetic magnetic order materials measurements Mineral mode Mössbauer natural neutron observed obtained occur octahedral olivines order parameter pairs perovskite phase diagrams phase transition Phys physical pigeonite polytypes positions possible potential predicted pressure properties pyroxenes quartz range respectively Salje sample shown shows silicates solid solution space group spin stability structure symmetry Table temperature theory thermodynamic tion transformation unit variation