domain wall energy

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• Domain wall — A domain wall is a term used in physics which can have one of two distinct but similar meanings in magnetism, optics, or string theory. These phenomena can all be generically described as topological solitons which occur whenever a discrete… …   Wikipedia

• Domain theory of ferromagnetism — explains[1] two significant observations of materials such as iron: The material may become strongly magnetized by application of a weak external magnetizing field. The same specimen may return to the demagnetized state when the external field is …   Wikipedia

• Magnetic domain — Several grains of NdFeB with magnetic domains made visible via contrast with a Kerr microscope. A magnetic domain describes a region within a magnetic material which has uniform magnetization. This means that the individual magnetic moments of… …   Wikipedia

• Cell wall — A cell wall is a tough, flexible and sometimes fairly rigid layer surrounding a cell, located external to the cell membrane, which provides the cell with structural support, protection, and acts as a filtering mechanism. A major function of the… …   Wikipedia

• magnet — /mag nit/, n. 1. a body, as a piece of iron or steel, that possesses the property of attracting certain substances, as iron. 2. a lodestone. 3. a thing or person that attracts: The park was a magnet for pickpockets and muggers. [1400 50; late ME… …   Universalium

• Ferromagnetism — Not to be confused with Ferrimagnetism; for an overview see Magnetism A magnet made of alnico, an iron alloy. Ferromagnetism is the physical theory which explains how materials become magnets. Ferromagnetism is the basic mechanism by which… …   Wikipedia

• Non-topological soliton — In quantum field theory, a non topological soliton (NTS) is a field configuration possessing, contrary to a topological one, a conserved Noether charge and stable against transformation into usual particles of this field for the following reason …   Wikipedia

• Magnetic domains — A magnetic domain describes a region within a material which has uniform magnetization. This means that the individual moments of the atoms are aligned with one another. In most materials, domains do not naturally exist. The materials have to be… …   Wikipedia

• Demagnetizing field — Electromagnetism Electricity · …   Wikipedia

• Coercivity — This article is about a property of magnetic fields. For other meanings, see Coercion (disambiguation). A family of hysteresis loops for grain oriented electrical steel (BR denotes remanence and HC is the coercivity). In materials science, the… …   Wikipedia

• Baryogenesis — Unsolved problems in physics Why does the observable universe have more matter than antimatter? …   Wikipedia