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I have learned that as temperature decreases, the motion of particles in a lattice decreases.Then how can a cooper pair move so swiftly across the lattice when temperature is considerably low?Can anyone please explain?
A superconductor is a material that has zero electrical resistance and can conduct electricity without any energy loss. It is able to achieve this state at very low temperatures, usually near absolute zero.
Cooper pairs are pairs of electrons that are bound together and move in a coordinated manner in superconductors. This pairing is essential for superconductivity to occur.
In a superconductor, cooper pairs move as a single entity due to the strong coupling between the electrons. This allows them to move without any resistance, resulting in the zero electrical resistance property of superconductors.
Lattice vibrations, also known as phonons, play a crucial role in the motion of cooper pairs. These vibrations create an attractive force between the electrons, leading to the formation of cooper pairs and facilitating their coordinated movement.
The Meissner effect is the expulsion of magnetic fields from the interior of a superconductor. This effect is a direct result of the motion of cooper pairs, which creates an opposite magnetic field to cancel out any external magnetic fields. This allows superconductors to maintain their zero resistance property even in the presence of external magnetic fields.