Solid State Physics |
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Page 105
... wave vector k of the phonons absorbed by the neutrons in peak " A " of Fig . 5-2 . Answer : 4.9 Å1 , approximately along the [ 100 ] direction . = From the results of the above problems , we find that the neutrons in peak " A " of Fig ...
... wave vector k of the phonons absorbed by the neutrons in peak " A " of Fig . 5-2 . Answer : 4.9 Å1 , approximately along the [ 100 ] direction . = From the results of the above problems , we find that the neutrons in peak " A " of Fig ...
Page 136
... wave functions . This is a principal advantage of using periodic boundary condi- tions in place of those in Eq . ( 7-1 ) . The wave vector ... wave vectors are k = ( 2π / L ) ( nãî + nyĵ + n2Ê ) . ( 7-8 ) Each allowed k corresponds to a ...
... wave functions . This is a principal advantage of using periodic boundary condi- tions in place of those in Eq . ( 7-1 ) . The wave vector ... wave vectors are k = ( 2π / L ) ( nãî + nyĵ + n2Ê ) . ( 7-8 ) Each allowed k corresponds to a ...
Page 265
... wave vector k . Thus , when an electron falls from the CB to the VB in Si , it simultaneously emits a photon with energy E , and a phonon with wave vector k of magnitude 0.99 Å - 1 and direc- tion along [ 100 ] . ( The energy of the ...
... wave vector k . Thus , when an electron falls from the CB to the VB in Si , it simultaneously emits a photon with energy E , and a phonon with wave vector k of magnitude 0.99 Å - 1 and direc- tion along [ 100 ] . ( The energy of the ...
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