Solid State Physics |
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Page 55
... lattice with lattice parameter a is an sc lattice with lattice parameter 2π / a . From Eq . ( 2-25 ) , we can also show that the reciprocal lattice of a bcc lattice with lattice parameter a is an fcc lattice with lattice parameter 4π ...
... lattice with lattice parameter a is an sc lattice with lattice parameter 2π / a . From Eq . ( 2-25 ) , we can also show that the reciprocal lattice of a bcc lattice with lattice parameter a is an fcc lattice with lattice parameter 4π ...
Page 59
... lattice . ( c ) Using x rays of wavelength > = 1.542 Å , we find the reflections at the two smallest Bragg angles to be at 19.4 ° and 28.0 ° . Is the lattice bcc or fcc ? Find the lattice parameter a . Answer : 1.41 , 1.15 , 3.28 Å ...
... lattice . ( c ) Using x rays of wavelength > = 1.542 Å , we find the reflections at the two smallest Bragg angles to be at 19.4 ° and 28.0 ° . Is the lattice bcc or fcc ? Find the lattice parameter a . Answer : 1.41 , 1.15 , 3.28 Å ...
Page 84
... lattice waves are concerned . Let us return to the question posed at the beginning of this chapter . What kind of ... parameter a becomes larger . This phenomenon is caused by increased atomic motion due to a greater amount of thermal energy ...
... lattice waves are concerned . Let us return to the question posed at the beginning of this chapter . What kind of ... parameter a becomes larger . This phenomenon is caused by increased atomic motion due to a greater amount of thermal energy ...
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