d+d model tagged posts

What’s in a name? A New Class of Superconductors: Commonly mistaken name leads to broader discovery

“Levitation of a magnet on top of a superconductor 2” by Jubobroff, Fbouquet, LPS is licensed under CC BY-SA 3.0.

A new theory that could explain how unconventional superconductivity arises in a diverse set of compounds might never have happened if physicists Qimiao Si and Emilian Nica had chosen a different name for their 2017 model of orbital-selective superconductivity.

In a study published this month in npj Quantum Materials, Si of Rice University and Nica of Arizona State University argue that unconventional superconductivity in some iron-based and heavy-fermion materials arises from a general phenomenon called “multiorbital singlet pairing.”

In superconductors, electrons form pairs and flow without resistance...

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