Intrinsic magnetism in superconducting infinite-layer nickelates
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States); SLAC
- Univ. of Geneva (Switzerland)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland); Eidgenoessische Technische Hochschule (ETH), Zurich (Switzerland)
- SLAC National Accelerator Lab., Menlo Park, CA (United States); City Univ. of Hong Kong, Kowloon (Hong Kong)
- SLAC National Accelerator Lab., Menlo Park, CA (United States); Stanford Univ., CA (United States)
- Paul Scherrer Inst. (PSI), Villigen (Switzerland)
The discovery of superconductivity in Nd0.8Sr0.2NiO2 introduced a new family of layered nickelate superconductors that has now been extended to include a range of Sr-doping, Pr or La in place of Nd, and the 5-layer Nd6Ni5O12. A number of studies indicate that electron correlations are strong in these materials, and hence a central question is whether or not magnetism is present as a consequence of these interactions. Here we report muon spin rotation/relaxation studies of a series of superconducting infinite-layer nickelates. In all cases we observe an intrinsic magnetic ground state, regardless of the rare earth ion or doping, arising from local moments on the nickel sublattice. Further, the coexistence of magnetism - which is likely to be antiferromagnetic and short-range ordered - with superconductivity is reminiscent of some iron pnictides and heavy fermion compounds, and qualitatively distinct from the doped cuprates.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES); SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Organization:
- European Research Council (ERC); Gordon and Betty Moore Foundation; Hong Kong Research Grant Council; National Natural Science Foundation of China (NSFC); Swiss National Science Foundation; Swiss National Science Foundation (SNSF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- Grant/Contract Number:
- AC02-76SF00515
- OSTI ID:
- 1886990
- Alternate ID(s):
- OSTI ID: 1891336
- Journal Information:
- Nature Physics, Journal Name: Nature Physics Journal Issue: 9 Vol. 18; ISSN 1745-2473
- Publisher:
- Nature Publishing Group (NPG)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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