Tag Archives: significance of gradient

London equations: explanation of flux penetration

As we have already derived the London equations in last article. Now let us explain the flux penetration (Meissner effect) from London equations: To explain Meissner effect from London equations consider the differential form of Ampere’s circuital law: del x … Continue reading

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Del operator and gradient

DEL OPERATOR Vector differential operator `del’ is represented by a symbol . Its another name is `nabla’. For three dimensional case, it is defined as = id/dx + jd/dy + kd/dz where I, j, k are unit  vectors in the … Continue reading

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