Introduction to Solid State Physics |
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Page 614
... exciton , then the exciton is metastable with re spect to decay into a free hole and free elec tron . All excitons are potentially unstable with respect to radiative recombination in which the electron drops down into the hole state in ...
... exciton , then the exciton is metastable with re spect to decay into a free hole and free elec tron . All excitons are potentially unstable with respect to radiative recombination in which the electron drops down into the hole state in ...
Page 615
... exciton binding energy are de- Huced from the shape of the absorption curve : he gap E , is 1.521 ev and the exciton binding energy is 0.0034 ev . Eg Eg - Eb Eb 0 Absorption coefficient a in 10 * cm - 1 1.2 1.1 1.0 0.9 0.8 0.7 | Eg 0.6 ...
... exciton binding energy are de- Huced from the shape of the absorption curve : he gap E , is 1.521 ev and the exciton binding energy is 0.0034 ev . Eg Eg - Eb Eb 0 Absorption coefficient a in 10 * cm - 1 1.2 1.1 1.0 0.9 0.8 0.7 | Eg 0.6 ...
Page 616
... exciton level . One crystal is known whose exciton spectrum satisfies ( 2 ) fairly accurately . Gross and others have studied optical absorption lines in cuprous oxide Cu20 at low temperatures , with results for the spacing of the exciton ...
... exciton level . One crystal is known whose exciton spectrum satisfies ( 2 ) fairly accurately . Gross and others have studied optical absorption lines in cuprous oxide Cu20 at low temperatures , with results for the spacing of the exciton ...
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