spontaneous electric dipole moment
21Ferroics — is the generic name given to the study of ferromagnets, ferroelectrics, and ferroelastics. Essentially the basis of this study is to understand the large changes in physical characteristics that occur in a very short temperature range. The… …
22Atom — The atom is the smallest unit of an element that retains the chemical properties of that element. An atom has an electron cloud consisting of negatively charged electrons surrounding a dense nucleus. The nucleus contains positively charged… …
23Gauge fixing — Quantum field theory (Feynman diagram) …
24Nonlinear optics — (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed… …
25Microwave oven — A modern microwave oven …
26Electrical phenomena — are commonplace and unusual events that can be observed which illuminate the principles of the physics of electricity and are explained by them.Electrical phenomena are a somewhat arbitrary division of electromagnetic phenomena.Some examples… …
27Internal conversion — This article is about the nuclear process. For the chemical process, see Internal conversion (chemistry). Internal conversion is a radioactive decay process where an excited nucleus interacts with an electron in one of the lower atomic orbitals,… …
28Hydrogen peroxide — IUPAC name …
29ferroelectricity — noun The electric polarization of a substance (spontaneous presence of a dipole moment) that is analagous to ferromagnetism See Also: ferroelectric …
30ferromagnetism — See ferromagnetic. * * * Physical phenomenon in which certain electrically uncharged materials strongly attract others. It is associated with iron, cobalt, nickel, and some alloys or compounds containing these elements. It is caused by the… …
