Burgers vectors (b) are used to represent the magnitude and direction of the lattice distortion resulting from dislocations. For the edge and screw dislocations, how are the Burgers vectors are defined? Please show in detail.

Burgers vectors (b) are used to represent the magnitude and direction of the lattice distortion resulting from dislocations. For the edge and screw dislocations, how are the Burgers vectors are defined? Please show in detail.

Modern Physics

3rd Edition

ISBN:9781111794378

Author:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Publisher:Raymond A. Serway, Clement J. Moses, Curt A. Moyer

Chapter12: The Solid State

Section: Chapter Questions

Problem 5P

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Ising model of Ferromagnets

The Ising model is one of the easiest and most famous theoretical models for ferromagnetism in statistical mechanics. When a group of atomic spins aligns such that their magnetic moments are pointed in the same direction and produce a strong permanent magnetic moment in macroscopic size, the phenomenon is called ferromagnetism. The relative permeability of these magnets is greater than unity and increasing magnetization with the applied external field. Even in the absence of an external magnetic field, these substances retain spontaneous magnetization. An example of ferromagnets is iron.

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