"Unveiling the Hidden Nature of Superconductors through Quantum Breakthrough"

Researchers at Tokyo Tech have identified the quantum critical point in superconductors, solving a three-decade-old mystery and enhancing the understanding of superconductivity fluctuations. By measuring the thermoelectric effect in superconductors over a wide range of magnetic fields and temperatures, they revealed the full picture of fluctuations in superconductivity and demonstrated that the anomalous metallic state in two-dimensional superconductors is due to the existence of a quantum critical point. This breakthrough sheds light on the properties of superconductors at cryogenic temperatures and has implications for the development of materials with large thermoelectric effects at low temperatures.