Solid State Physics |
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Page 32
... force is in such a direction that it tries to decrease r . In other words , the force is attractive . Obviously , if this were the only force present , the two ions would move toward each other until r = 0. To prevent this from ...
... force is in such a direction that it tries to decrease r . In other words , the force is attractive . Obviously , if this were the only force present , the two ions would move toward each other until r = 0. To prevent this from ...
Page 33
... force 0 -1 repulsive force equilibrium attractive force -2 0 1 2 3 4 5 r ( Å ) Fig . 1-30 . The repulsive , attractive , and net force between a Na + and a Cl ̄ ion separated by distance r . and is shown as a dashed line in the figure ...
... force 0 -1 repulsive force equilibrium attractive force -2 0 1 2 3 4 5 r ( Å ) Fig . 1-30 . The repulsive , attractive , and net force between a Na + and a Cl ̄ ion separated by distance r . and is shown as a dashed line in the figure ...
Page 62
... force . A displacement of the ions from their equilibrium position causes the force to try to restore them back to equilibrium . If we pull the ions apart and let them go , they will os- cillate about the equilibrium position . Consider ...
... force . A displacement of the ions from their equilibrium position causes the force to try to restore them back to equilibrium . If we pull the ions apart and let them go , they will os- cillate about the equilibrium position . Consider ...
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Answer atoms average bond Bragg angle Bragg's Law Bravais lattice Brillouin zone called Chapter classical model collisions conduction electrons Consider constructively interfere Cooper pairs copper depletion layer direction dispersion curve displacement distance doped effective mass elec electric current electric field electrons and holes energy band equal example fcc lattice Fermi energy Fermi level Fermi surface force free electron free particle frequency given by Eq inside ions k-space laser lattice parameter lattice points lattice vector lattice wave magnetic field n-type semiconductor Na+-Cl NaCl negative neutrons number of electrons obtain occupied one-dimensional oscillate p-n junction p-side n-side photon planes positively charged potential energy primitive unit cell Problem rays reciprocal lattice reverse biased scattered Schroedinger's equation shown in Fig sodium metal superconductor temperature thermal energy tion transistor trons unit cell unoccupied values velocity voltage wave function wave number wave vector wavelength wire x-ray diffraction zero