## Introduction to Solid State Physics |

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Page 71

The distance between a positive ion and the nearest negative ion in

energy of the two ions by themselves is e”/ro = (4.8 × 10−")*/(2.8 × 10^*) = 8 × 10

” ergs ...

The distance between a positive ion and the nearest negative ion in

**sodium****chloride**is known to be 2.81 × 10^ cm, so that the attractive part of the potentialenergy of the two ions by themselves is e”/ro = (4.8 × 10−")*/(2.8 × 10^*) = 8 × 10

” ergs ...

Page 77

Structure CY

Zinc blende, ZnS 1.6381 Wurtzite, ZnS 1.641 The cesium chloride lattice is body-

centered cubic and may be easily visualized. We consider (Fig. 3.7) cesium ions

...

Structure CY

**Sodium chloride**, NaCl 1.747558 Cesium chloride, CsCl 1.762670Zinc blende, ZnS 1.6381 Wurtzite, ZnS 1.641 The cesium chloride lattice is body-

centered cubic and may be easily visualized. We consider (Fig. 3.7) cesium ions

...

Page 83

Calculate the value of A in Eq. (3.1) for

6.43; and R0 = 2.81 × 10^* cm. Ans. X = 0.7 × 10 ° ergs cn'". 3.3. Show for the

text, ...

Calculate the value of A in Eq. (3.1) for

**sodium chloride**, taking n = 10: A 10 =6.43; and R0 = 2.81 × 10^* cm. Ans. X = 0.7 × 10 ° ergs cn'". 3.3. Show for the

**sodium chloride**structure that a ~ 1.75; use the Evjen method as discussed in thetext, ...

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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