pinning
n. uncountablen. the way a particle's movement is stopped or held in place by a defect in a material. This is very important in physics for making strong magnets work correctly.
n. the restriction of movement of magnetic flux lines or dislocations within a material due to structural defects or impurities. This mechanism is essential for maintaining high current densities in superconductors.
Flux pinning allows the magnet to float above the superconductor.
The researchers studied how chemical impurities affect the pinning of magnetic vortices in thin films.
Effective pinning of magnetic flux lines is a prerequisite for the practical application of high-temperature superconductors in power transmission and medical imaging devices.
Often appears in the compound phrase 'flux pinning' within condensed matter physics.