## Solid state physics |

### From inside the book

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Page 55

vectors ai, a2, a3 of the direct lattice in real space as 27ra2 x a3 b, = ai - (a2 x a3)

' , 2na3 x ax , b2 = -f -r, 2-25 a2 - (a3 x ai) v ' _ ... We already showed that the

reciprocal lattice of an sc lattice with

...

vectors ai, a2, a3 of the direct lattice in real space as 27ra2 x a3 b, = ai - (a2 x a3)

' , 2na3 x ax , b2 = -f -r, 2-25 a2 - (a3 x ai) v ' _ ... We already showed that the

reciprocal lattice of an sc lattice with

**lattice parameter**o is an sc lattice with lattice...

Page 56

The direction of G is always perpendicular to some plane of lattice points in real

space. ... The Bravais lattice in real space (the direct lattice) is fcc with

3.48 ...

The direction of G is always perpendicular to some plane of lattice points in real

space. ... The Bravais lattice in real space (the direct lattice) is fcc with

**lattice****parameter**a = 3.61 A. The reciprocal lattice is bcc with**lattice parameter**4ir /a =3.48 ...

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(b) Repeat part (a) for an fcc lattice, (c) Using x rays of wavelength A = 1.542 A,

we find the reflections at the two smallest Bragg angles to be at 19.4° and 28.0°.

Is the lattice bcc or fcc? Find the

(b) Repeat part (a) for an fcc lattice, (c) Using x rays of wavelength A = 1.542 A,

we find the reflections at the two smallest Bragg angles to be at 19.4° and 28.0°.

Is the lattice bcc or fcc? Find the

**lattice parameter**a. Answer: 1.41, 1.15, 3.28 A.### What people are saying - Write a review

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### Contents

XRay Diffraction | 37 |

Lattice Vibrations | 61 |

Classical Model of Metals | 89 |

Copyright | |

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### Common terms and phrases

Answer Appendix basis vectors bcc lattice bond Bragg angle Bragg's Law Bravais lattice Brillouin zone called Chapter collisions conduction electrons Consider conventional unit cell Cooper pairs depletion layer diode direction dispersion curve displacement distance doped effective mass elec electric current electric field electrons and holes emitter energy band equal example Fermi energy Fermi level Fermi surface force forward biased free electron free particle frequency given by Eq inside integers ions k-space laser lattice parameter lattice points lattice vector lattice wave magnetic field n-type semiconductor NaCl negative neutrons number of electrons obtain occupied one-dimensional oscillate p-n junction photon positively charged potential energy primitive unit cell Problem rays reciprocal lattice reverse biased sc lattice scattered Schroedinger's equation shown in Fig sodium metal solid structure superconductor temperature tion transistor trons unit cell unoccupied values velocity voltage wave function wave number wave vector wavelength Wigner-Seitz cell wire x-ray diffraction zero