Introduction to Solid State Physics |
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Page 33
... distance R , between ions . negative ion as reference ion , and let Ro denote the distance between adjacent ions . We have 30 or α = 2 Ro Ro α = 21 1 1 1 + 4Ro + 2Ro 3Ro 1 1 + - 2 3 4 + • the factor 2 occurs because there are two ions ...
... distance R , between ions . negative ion as reference ion , and let Ro denote the distance between adjacent ions . We have 30 or α = 2 Ro Ro α = 21 1 1 1 + 4Ro + 2Ro 3Ro 1 1 + - 2 3 4 + • the factor 2 occurs because there are two ions ...
Page 40
... distance . The tailing - off of the radial wave functions according to quantum mechanics tells us that no absolute significance may be attached to a table of ionic radii , but for many purposes a set of radii , such as those in Tables ...
... distance . The tailing - off of the radial wave functions according to quantum mechanics tells us that no absolute significance may be attached to a table of ionic radii , but for many purposes a set of radii , such as those in Tables ...
Page 132
... distance a , each dipole having a polarizability a . Find the relation between a and a for such a system to be ferroelectric . 7.2 . Consider a system consisting of 2 dipoles separated by a fixed distance a along the x axis . Assume ...
... distance a , each dipole having a polarizability a . Find the relation between a and a for such a system to be ferroelectric . 7.2 . Consider a system consisting of 2 dipoles separated by a fixed distance a along the x axis . Assume ...
Contents
LATTICE ENERGY OF IONIC CRYSTALS | 29 |
ELASTIC CONSTANTS OF CRYSTALS | 43 |
LATTICE VIBRATIONS | 60 |
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absorption alkali alloy anisotropy antiferromagnetic approximately atoms axes axis Bardeen barium titanate boundary calculated charge coefficient conduction band cube Curie point Debye density diamagnetic dielectric constant diffraction diffusion dipole direction discussed dislocation displacement domains effect elastic electric field energy entropy equation equilibrium experimental F-centers factor Fermi ferroelectric ferromagnetic free electron frequency given heat capacity holes impurity interaction ionic crystals ionized ions lattice constant lattice points London low temperatures magnetic field magnetic moment metals molecules motion nearest neighbor normal observed optical orbital parallel paramagnetic particles perovskite phonons Phys physical plane polarizability polarization positive potassium potassium chloride potential Proc quantum resonance result room temperature scattering Seitz shear Shockley shown in Fig single crystal sodium chloride solids specimen spin strain stress superconducting surface susceptibility symmetry Table theory thermal tion transition unit volume vacancy valence values vector velocity wave functions x-ray zero