Structural and Magnetic Phase Transitions in Minerals |
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Page 30
... shows a variation similar to that of ax , in good agreement with Pippard's relation ( Eq . 3 ) . Large variations have also been observed for the elastic moduli S and S. As a , a ,, and Cp have large values in the inc phase , the ...
... shows a variation similar to that of ax , in good agreement with Pippard's relation ( Eq . 3 ) . Large variations have also been observed for the elastic moduli S and S. As a , a ,, and Cp have large values in the inc phase , the ...
Page 33
... show the existence of a minimum frequency at the finite value of qo = 0.035a * with a frequency that decreases near T ... shows that the inc phase of quartz is not particular to SiO2 but is related to the quartz structure common to SiO2 ...
... show the existence of a minimum frequency at the finite value of qo = 0.035a * with a frequency that decreases near T ... shows that the inc phase of quartz is not particular to SiO2 but is related to the quartz structure common to SiO2 ...
Page 213
... shows the halfwidth at half maximum ( HWHM ) of the magnetic ( 111 ) peak of a sample with x = 0.51 . The instrumental resolution is indicated by the dashed line giving the observed HWHM of the nuclear reflections . The temperature ...
... shows the halfwidth at half maximum ( HWHM ) of the magnetic ( 111 ) peak of a sample with x = 0.51 . The instrumental resolution is indicated by the dashed line giving the observed HWHM of the nuclear reflections . The temperature ...
Contents
Incommensurate Phase Transitions in Quartz and Berlinite | 17 |
Phase Separation in Quadrilateral Pyroxenes and Olivines | 39 |
Multicritical Phase Relations in Minerals | 60 |
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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