Structural and Magnetic Phase Transitions in MineralsThis volume in Advances in Physical Geochemistry presents the latest synthesis of theory and experimental data pertaining to structural and magnetic phase transitions in a variety of geochemically important minerals. The book is the first to cover the impact of this rapidly progressing area of solid state physics in earth sciences and reflects its growing significance for mineralogy and petrology. |
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Page 24
Although some variation may be expected in different samples , or may be attributed to thermal hysteresis effects or to the influence of size in fine powders , the most plausible explanation for this large spread is experimental ...
Although some variation may be expected in different samples , or may be attributed to thermal hysteresis effects or to the influence of size in fine powders , the most plausible explanation for this large spread is experimental ...
Page 177
The exchange is again predominantly positive , o 27 K for a synthetic sample , and the magnetic structure below the Néel point Tn = 40 K consists of ferromagnetic ribbons , coupled antiferromagnetically , with the moments along b .
The exchange is again predominantly positive , o 27 K for a synthetic sample , and the magnetic structure below the Néel point Tn = 40 K consists of ferromagnetic ribbons , coupled antiferromagnetically , with the moments along b .
Page 219
As Pbly strongly absorbs the X - ray beam , backscattering diffractograms were taken from each large surface of the platelike samples . The orientation of the surface was ( 001 ) in 2H . The exposure time varied between 30 and 90 min .
As Pbly strongly absorbs the X - ray beam , backscattering diffractograms were taken from each large surface of the platelike samples . The orientation of the surface was ( 001 ) in 2H . The exposure time varied between 30 and 90 min .
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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
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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+ Fe3+ 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