Search results
Results From The WOW.Com Content Network
Ferromagnetism is a property of certain materials (such as iron) that results in a significant, observable magnetic permeability, and in many cases, a significant magnetic coercivity, allowing the material to form a permanent magnet. Ferromagnetic materials are noticeably attracted to a magnet, which is a consequence of their substantial ...
Hysteresis loop Induction B as function of field strength H for H varying between H min and H max; for ferromagnetic material the B has different values for H going up and down, therefore a plot of the function forms a loop instead of a curve joining two points; for perminvar type materials, the loop is a "rectangle" (Domain Structure of Perminvar Having a Rectangular Hysteresis Loop, Williams ...
This page is a list of substances which exhibit ferromagnetism in the broad sense that includes ferrimagnetism. Some of these are elemental metals , while others are alloys , oxides or other chemical compounds .
Multiferroics are defined as materials that exhibit more than one of the primary ferroic properties in the same phase: [1] ferromagnetism – a magnetisation that is switchable by an applied magnetic field; ferroelectricity – an electric polarisation that is switchable by an applied electric field
A ferrimagnetic material is a material that has populations of atoms with opposing magnetic moments, as in antiferromagnetism, but these moments are unequal in magnitude, so a spontaneous magnetization remains. [1] This can for example occur when the populations consist of different atoms or ions (such as Fe 2+ and Fe 3+).
A magnetic alloy is a combination of various metals from the periodic table such as ferrite that exhibits magnetic properties such as ferromagnetism.Typically the alloy contains one of the three main magnetic elements (which appear on the Bethe-Slater curve): iron (Fe), nickel (Ni), or cobalt (Co).
A lot of the elusive extrinsic ferromagnetism (or phantom ferromagnetism) is observed in thin films or nanostructured materials. [11] Several examples of proposed ferromagnetic semiconductor materials are listed below. Notice that many of the observations and/or predictions below remain heavily debated.
Internally, ferromagnetic materials have a structure that is divided into domains, each of which is a region of uniform magnetization.When a magnetic field is applied, the boundaries between the domains shift and the domains rotate; both of these effects cause a change in the material's dimensions.