The answer to this question is crucial to determining whether superconductivity can truly exist at room temperature. For instance, if a theoretical upper limit exists below room temperature, then achieving room-temperature superconductivity would be fundamentally impossible.
Finally, a team of researchers from Queen Mary University of London has found the answer. In their new study, they reveal the factors affecting the upper limit and the maximum temperature range suitable for superconductivity.
The power of fundamental constants
The study authors shed light on the role of fundamental physical constants—such as electron mass, Planck’s constant (h), electron charge, and the fine-structure constant (α).