Magnonic Superconductivity
Abstract: We uncover a new superconducting state with partial spin polarization induced by a magnetic field. This state, which we call "magnonic superconductor", lacks a conventional pairing order parameter, but is characterized instead by a composite order parameter that represents the binding of electron pairs and magnons. We rigorously demonstrate the existence of magnonic superconductivity with high transition temperature in one- and two-dimensional Hubbard models with repulsive interaction. We further show that magnonic Cooper pairs can attract to form higher-charge bound states, which can give rise to charge-$6e$ superconductivity.
- P. A. Lee, N. Nagaosa, and X.-G. Wen, Doping a mott insulator: Physics of high-temperature superconductivity, Rev. Mod. Phys. 78, 17 (2006).
- M. R. Norman, The challenge of unconventional superconductivity, Science 332, 196 (2011).
- P. W. Anderson, Materials Research Bulletin 8, 153 (1973).
- P. Fazekas and P. W. Anderson, On the ground state properties of the anisotropic triangular antiferromagnet, The Philosophical Magazine: A Journal of Theoretical Experimental and Applied Physics 30, 423 (1974).
- Z. Dong, L. Levitov, and A. V. Chubukov, Superconductivity near spin and valley orders in graphene multilayers, Phys. Rev. B 108, 134503 (2023).
- V. Crépel and L. Fu, New mechanism and exact theory of superconductivity from strong repulsive interaction, Science Advances 7, eabh2233 (2021).
- V. Crépel and L. Fu, Spin-triplet superconductivity from excitonic effect in doped insulators, Proceedings of the National Academy of Sciences 119, e2117735119 (2022).
- S.-S. Zhang, W. Zhu, and C. D. Batista, Pairing from strong repulsion in triangular lattice hubbard model, Phys. Rev. B 97, 140507 (2018).
- M. Davydova, Y. Zhang, and L. Fu, Itinerant spin polaron and metallic ferromagnetism in semiconductor moiré superlattices, Phys. Rev. B 107, 224420 (2023).
- Y. Zhang and L. Fu, Pseudogap metal and magnetization plateau from doping moiré Mott insulator, SciPost Phys. Core 6, 038 (2023).
- N. Prokof’ev, O. Ruebenacker, and B. Svistunov, Critical point of a weakly interacting two-dimensional bose gas, Phys. Rev. Lett. 87, 270402 (2001).
Paper Prompts
Sign up for free to create and run prompts on this paper using GPT-5.
Top Community Prompts
Collections
Sign up for free to add this paper to one or more collections.
