MATLS 2X03 Study Guide - Final Guide: Reciprocal Lattice, Frenkel Defect, Schottky Defect

• School: McMaster University
• Department: Materials Science and Engineering
• Course: MATLS 2X03
• Professor: Igor Zhitomirsky

Document Summary

A solid material that has discrete diffraction patterns. Has 2 orientation states in the absence of an electric field. Can be shifted from 1 to another of these states by an electric field. A type of point defect where an atom/ion is displaced from regular position to an interstitial one. Plane at which the crystal is reflected and then translated. All are in order and are in a solid state. Corresponding points are located equidistance from the centre on a line drawn through the centre. A coordinated polyhedral of anions a formed around cation x has. X-a distance calculated by rx+ra and coordination number rx/ra. Pi (i=1,m) of the m pauling"s bond strengths pi calculated for each (x-a)i bond formed by an anion is equal to the charge on the anion. Sharing the faces (and edges) between coordination polyhedral decreases the stability of the structures. Particularly in the case of cations with large charge and low coordination number.