The London equation is the following two phenomenological equations about the relationship between superconductor current and its internal electric and magnetic fields, which were proposed by the German physicists Fritz London and Heinz London brothers in 1935. The London equation is the simplest and most effective description of superconductivity. The London equation cannot be deduced by strict mathematical means, but is the conclusion drawn by the London brothers by virtue of intuition and logical thinking. The biggest contribution of London equation to the study of superconductivity is that it successfully explains the physical mechanism of Meissner effect.
Fundamental of Material Science -> Physical and chemical basis of materials