Solid State Physics |
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Page 66
Harold T. Stokes. An alternate way to represent the lattice wave is shown in Fig . 3-4 . The horizontal axis is xn , the equilibrium positions of the atoms . The vertical axis is un , the displacements of the atoms from equilibrium . The ...
Harold T. Stokes. An alternate way to represent the lattice wave is shown in Fig . 3-4 . The horizontal axis is xn , the equilibrium positions of the atoms . The vertical axis is un , the displacements of the atoms from equilibrium . The ...
Page 102
Harold T. Stokes. is that of lattice waves , which we discussed in Chapter 3. The quantum of energy in a lattice wave is given by E = ħw as in Eq . ( 5-3 ) for an electromagnetic wave . This energy quantum of a lattice wave is called a ...
Harold T. Stokes. is that of lattice waves , which we discussed in Chapter 3. The quantum of energy in a lattice wave is given by E = ħw as in Eq . ( 5-3 ) for an electromagnetic wave . This energy quantum of a lattice wave is called a ...
Page 105
... lattice wave propagating along the [ 100 ] direction with w = 4.3 × 1013 s - 1 and k = 4.9 Å - 1 . In Problem 3-10 , we found that the first Brillouin zone in Cu only extended to kmax 1.74 Å - 1 along the [ 100 ] direction . Our phonon ...
... lattice wave propagating along the [ 100 ] direction with w = 4.3 × 1013 s - 1 and k = 4.9 Å - 1 . In Problem 3-10 , we found that the first Brillouin zone in Cu only extended to kmax 1.74 Å - 1 along the [ 100 ] direction . Our phonon ...
Common terms and phrases
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