Introduction to Solid State Physics |
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Page 372
... impurity atom in silicon . Arsenic has five valence electrons , but silicon has only four valence electrons . Thus four electrons on the arsenic form tetra- hedral covalent bonds similar to silicon , and the fifth electron is available ...
... impurity atom in silicon . Arsenic has five valence electrons , but silicon has only four valence electrons . Thus four electrons on the arsenic form tetra- hedral covalent bonds similar to silicon , and the fifth electron is available ...
Page 376
... impurity atoms may be important at higher impurity concentrations . The scattering will depend on whether the impurity is neutral or ionized . The neutral atom prob- lem is equivalent to the scattering of an electron by a hydrogen atom ...
... impurity atoms may be important at higher impurity concentrations . The scattering will depend on whether the impurity is neutral or ionized . The neutral atom prob- lem is equivalent to the scattering of an electron by a hydrogen atom ...
Page 394
... impurity atoms occur ? This overlap tends to produce an impurity band — a band of energy levels which per- mit conductivity presumably by a hopping mechanism in which electrons move from one impurity site to a neighboring ionized impurity ...
... impurity atoms occur ? This overlap tends to produce an impurity band — a band of energy levels which per- mit conductivity presumably by a hopping mechanism in which electrons move from one impurity site to a neighboring ionized impurity ...
Contents
CRYSTAL STRUCTURE | 1 |
CRYSTAL DIFFRACTION AND THE RECIPROCAL LATTICE | 43 |
CRYSTAL BINDING | 95 |
Copyright | |
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absolute zero absorption alkali halide alloy antiferromagnet applied field atoms axis boundary Brillouin zone calculated Chapter charge components conduction band conduction electrons crystal structure cubic density dielectric constant dielectric function diffraction dipole direction dislocation dispersion relation effective mass elastic electric field electron concentration electron gas energy gap equation equilibrium excited exciton experimental F center Fermi surface ferroelectric ferromagnetic Figure free electron frequency function given heat capacity hole impurity interaction ionic lattice constant lattice points low temperatures magnetic field magnetic moment magnon metal modes momentum motion nearest neighbors neutron normal nuclear optical orbital paramagnetic particle phase phonon Phys plane polarization positive potential primitive cell quantum reciprocal lattice vector region resonance result room temperature scattering semiconductor shown in Fig space specimen sphere superconducting theory thermal tion transition unit vacancy valence band velocity wavefunction wavelength wavevector x-ray