## Introduction to Solid State Physics |

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Page 235

We imagine that the electrons are moving around in a random way, with a

temperature T. In the absence of an applied electric field the average or drift

We imagine that the electrons are moving around in a random way, with a

**velocity**distribution appropriate to a condition of thermal equilibrium attemperature T. In the absence of an applied electric field the average or drift

**velocity**, (10.1) ...Page 268

The factor E/h has the dimensions of a frequency. (a) Show that V (r, t) - e—it (E/

not kr) represents a wave traveling in the positive a direction with phase

E/hk. (b) What is the group

The factor E/h has the dimensions of a frequency. (a) Show that V (r, t) - e—it (E/

not kr) represents a wave traveling in the positive a direction with phase

**velocity**E/hk. (b) What is the group

**velocity**? According to the de Broglie relation, what ...Page 300

For the portion of the energy surface to the left of F the slope & E/ók, is positive;

from (11.37) the group

positive

direction of ...

For the portion of the energy surface to the left of F the slope & E/ók, is positive;

from (11.37) the group

**velocity**is (11.71) vo = h^* 6 F/ók, so that we have apositive

**velocity**. We see then that the**velocity**of the hole increases in thedirection of ...

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absorption acceptors alkali alloys approximately atoms axis barium titanate boundary Bragg Brillouin zone calculated chapter charge conduction band conduction electrons crystal structure cube cubic Curie point Debye density dielectric constant diffraction diffusion dipole direction discussion dislocation distribution domain effective mass elastic electric field energy equation equilibrium exciton experimental F centers factor Fermi ferroelectric ferromagnetic free electron frequency germanium given heat capacity hexagonal holes impurity interaction ionization ions lattice constant lattice point low temperatures magnetic field magnetic moment metals molecules motion nearest neighbor normal observed p-n junction paramagnetic particles phonons Phys physics plane polarizability polarization positive potential Proc region resonance result room temperature rotation semiconductor Shockley shown in Fig sodium chloride solid solution space group specimen spin superconducting surface susceptibility symmetry Table theory thermal tion transition unit volume vacancies valence band values vector velocity wave functions wavelength zero