Nearly ferromagnetic spin-triplet superconductivity

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Abstract
An unusual superconductor: In conventional, and in many unconventional, superconductors, the electrons that form Cooper pairs have spins pointing in opposite directions. An applied magnetic field can easily “break” such pairs—and destroy superconductivity—by aligning both spins in the same direction. In contrast, spin-triplet superconductors are much more resilient to magnetic fields. Very few candidates for such materials have been discovered. Ran et al. add to this select group by observing signatures of spin-triplet superconductivity, including a very large and anisotropic upper critical magnetic field, in the material UTe 2 . Because spin-triplet superconductors may naturally exhibit topological superconductivity, this material may also be of interest in quantum computing. Science , this issue p. 684
Funding Information
  • National Science Foundation (DMR-1610349)
  • U.S. Department of Energy (DE-AC02-07CH11358)
  • Air Force Office of Scientific Research (FA9550-14-1-0332)
  • Gordon and Betty Moore Foundations (GBMF4419)

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