In this section we shall investigate the dynamics of particles in a medium with a screw dislocation along the z direction as shown in Fig. 1. Before going to the details, let us briefly discuss the ...

Metals with a body-centered cubic (bcc) crystal structure are the basis of an important group of structural metals in engineering applications, such as ferritic steels and many refractory alloys. The ...

Materials engineers don't like to see line defects in functional materials. The structural flaws along a one-dimensional line of atoms generally degrades performance of electrical materials. So, as a ...

Settling a half century of debate, researchers have discovered that tiny linear defects can propagate through a material faster than sound waves do. These linear defects, or dislocations, are what ...