NTNU Scientists Spot Triplet Superconductor Signs in NbRe Alloy at 7 Kelvin
Updated
Updated · ScienceDaily · May 30
NTNU Scientists Spot Triplet Superconductor Signs in NbRe Alloy at 7 Kelvin
2 articles · Updated · ScienceDaily · May 30
NbRe, a niobium-rhenium alloy, showed behavior consistent with triplet superconductivity in experiments led by NTNU and collaborators in Italy, a result the team says could improve quantum-computing stability.
Triplet superconductors differ from conventional singlet materials by carrying electron spin as well as charge, potentially enabling zero-resistance transport of both electrical and spin currents with far lower energy loss.
The researchers said NbRe behaves unlike a conventional superconductor and reported the findings in Physical Review Letters, but stressed that other groups still need to verify the result with further tests.
At 7 Kelvin, NbRe superconducts at a comparatively practical temperature for the field; many other triplet candidates operate closer to 1 Kelvin, limiting their usefulness for quantum and spintronic devices.
Will the 'holy grail' superconductor found last year truly solve quantum computing's crippling energy and stability problems?
Beyond quantum computing, how might this perfect 'spin conductor' transform our everyday electronics and data storage?
As demand for its rare metals grows, could a new resource war threaten the next quantum revolution?
Triplet Superconductivity at 7K: NTNU’s Breakthrough Discovery in Niobium–Rhenium (NbRe) and Its Quantum Technology Impact
Overview
In 2025, NTNU researchers led by Professor Jacob Linder, together with Italian collaborators, announced a major breakthrough: evidence for triplet superconductivity in the niobium–rhenium (NbRe) alloy. Their study, published in a leading journal, marks a crucial step in the search for materials where electrons pair with parallel spins—a property that sets triplet superconductors apart from conventional ones. This discovery is exciting because triplet superconductors are seen as a 'holy grail' for future technologies, promising fundamentally new physical behaviors and the potential for highly energy-efficient applications in quantum computing and electronics.