Solid State PhysicsThis book provides an introduction to the field of solid state physics for undergraduate students in physics, chemistry, engineering, and materials science. |
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Page 470
... neutron scattering . One example1 is solid helium - 3 , in which neutron spectroscopy is made impossible by the enormous cross section for a helium - 3 nucleus capturing a neutron . Neutrons and photons probe the phonon spectrum in ...
... neutron scattering . One example1 is solid helium - 3 , in which neutron spectroscopy is made impossible by the enormous cross section for a helium - 3 nucleus capturing a neutron . Neutrons and photons probe the phonon spectrum in ...
Page 476
... neutrons scattered in a given direction . If a neutron has exchanged energy with two or more phonons , the number of degrees of freedom sufficiently exceeds the number of conservation laws that a continuum of scattered neutron energies ...
... neutrons scattered in a given direction . If a neutron has exchanged energy with two or more phonons , the number of degrees of freedom sufficiently exceeds the number of conservation laws that a continuum of scattered neutron energies ...
Page 479
... neutron energy vanishes quadratically for small p ' , while ho , ( p ' / h ) either vanishes linearly ( acoustic branch ) or approaches a constant ( optical branch ) . Hence for small enough p ' the neutron energy is always less than ...
... neutron energy vanishes quadratically for small p ' , while ho , ( p ' / h ) either vanishes linearly ( acoustic branch ) or approaches a constant ( optical branch ) . Hence for small enough p ' the neutron energy is always less than ...
Contents
The Drude Theory of Metals | 1 |
The Sommerfeld Theory of Metals | 29 |
Failures of the Free Electron Model | 57 |
Copyright | |
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alkali atomic band structure Bloch Bragg plane Bravais lattice Brillouin zone calculation carrier densities Chapter coefficients collisions conduction band conduction electrons contribution crystal momentum crystal structure density of levels dependence depletion layer described dielectric constant distribution Drude Drude model effect electric field electron gas electron-electron electronic levels electrostatic energy gap equilibrium example Fermi energy Fermi surface Figure free electron frequency given Hamiltonian hexagonal holes impurity independent electron approximation insulators interaction ionic crystals k-space lattice planes lattice point linear low temperatures macroscopic magnetic field metals neutron normal modes number of electrons one-electron levels orbits periodic potential perpendicular phonon Phys primitive cell primitive vectors Problem properties quantum reciprocal lattice vector region result scattering Schrödinger equation semiclassical semiconductors simple cubic solid solution specific heat spin superconducting symmetry term theory thermal valence band vanishes velocity wave functions wave vector zero