The Coloumb drag is a phenomenon that affects two electronic circuits, whereby a charge current in one circuit induces a responsive current in a neighboring circuit solely through so-called Coloumb interactions. These are electrostatic interactions between electric charges that follow Coulomb’s law, the key physics theory describing classical electrodynamics.
Click here for original story, Study unveils a large tunable drag response between a normal conductor and a superconductor
Source: Phys.org