Introduction to Solid State Physicsproblems after each chapter |
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Page 95
Thus the relation ( 4.29 ) is the condition that the crystal should be elastically
isotropic ; that is , that waves should propagate in all directions with equal
velocities . However , the longitudinal wave velocity is not necessarily equal to
the ...
Thus the relation ( 4.29 ) is the condition that the crystal should be elastically
isotropic ; that is , that waves should propagate in all directions with equal
velocities . However , the longitudinal wave velocity is not necessarily equal to
the ...
Page 96
If then a cubic crystal were elastically isotropic and the Cauchy relation satisfied ,
the velocity of the transverse waves would be equal to ( 1 ) the velocity of the
longitudinal waves . The conditions for the validity of the Cauchy relations are : 1.
If then a cubic crystal were elastically isotropic and the Cauchy relation satisfied ,
the velocity of the transverse waves would be equal to ( 1 ) the velocity of the
longitudinal waves . The conditions for the validity of the Cauchy relations are : 1.
Page 244
A convenient practical relation for electrons is X ( A ) = ( 150/1 ' ) , where is given
in Angstrom units ( 10-8 cm ) and I ' is the accelerating voltage in volts . We see
that the wavelength of a 150 - volt electron is 1 A ; of a 1.5 volt electron , 10 A.
The ...
A convenient practical relation for electrons is X ( A ) = ( 150/1 ' ) , where is given
in Angstrom units ( 10-8 cm ) and I ' is the accelerating voltage in volts . We see
that the wavelength of a 150 - volt electron is 1 A ; of a 1.5 volt electron , 10 A.
The ...
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Contents
DIFFRACTION OF XRAYS BY CRYSTALS | 44 |
CLASSIFICATION OF SOLIDS LATTICE ENERGY | 63 |
ELASTIC CONSTANTS OF CRYSTALS | 85 |
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alloys applied approximately associated atoms axis band boundary calculated cell chapter charge concentration condition conductivity consider constant crystal cubic density dependence determined dielectric diffusion direction discussion dislocation distribution domain effect elastic electric electron elements energy equal equation equilibrium experimental expression factor field force frequency function germanium give given heat capacity hexagonal holes important impurity increase interaction ionic ions lattice levels London magnetic magnetic field mass material measurements metals method motion normal observed obtained parallel particles Phys physics plane polarization positive possible potential problem properties range reference reflection region relation resistivity result room temperature rotation shown in Fig simple solid solution space space group specimen structure surface symmetry Table temperature theory thermal tion transition unit usually values vector volume wave zero zone