Researchers have developed a new experiment capable of monitoring the magnetic properties of superconductors at very fast speeds.
Superconductivity is a fascinating phenomenon, which allows a material to sustain an electrical current without any loss. This collective quantum behavior of matter only appears in certain conductors at temperatures far below ambient.
This phenomenon has been termed"light-induced superconductivity," signaling an analogy with its equilibrium counterpart. Besides being capable of transporting electrical currents without loss, superconductors are also known to expel magnetic fields from their interior. This phenomenon, known in equilibrium conditions as the Meissner effect, is a direct consequence of the mutual coherence of the charge carriers and of their tendency to march in lockstep.
sample with sub-picosecond resolution and unprecedented sensitivity," says Giovanni de Vecchi, one of the co-authors.is made superconducting at equilibrium by cooling," adds fellow author Michele Buzzi."This suggests that driving the material may even be an effective route to bring its superconducting properties closer to ambient conditions," continues co-author Gregor Jotzu, now a faculty member at EPFL and head of the Dynamic Quantum Materials Laboratory.
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