We thank S. Y. F. Zhao, P. Neves, A. Mayo, E. S. Choi, P. Müller, J. Oppenheim, N. Chatterjee, H. Rezeau, J. Cox and C. Settens for their technical support of this project and for useful discussions. We thank the MIT Chemistry Department X-Ray Diffraction Facility, the MIT Electron Microprobe Facility and the National High Magnetic Field Laboratory for making this work possible. This work was financed, in part, by the Gordon and Betty Moore Foundation EPiQS Initiative, grant no. GBMF9070 (synthesis instrumentation and computation), the U.S. Department of Energy (DOE) Office of Science, Basic Energy Sciences, under award DE-SC0022028 (material development), the Office of Naval Research (ONR) under award N000142412407 (material analysis) and ARO grant no. W911NF-24-1-0234 (measurement technique development) to J.G.C. K.P.N. acknowledges support from the MIT Pappalardo Fellowship in Physics. Support for the theory–experimental collaboration reported here was provided by the Air Force Office of Scientific Research (AFOSR), under award FA9550-22-1-0432 to L.F. and J.G.C. F.G. is grateful for the financial support from the Swiss National Science Foundation (Postdoc.Mobility grant no. 222230). Part of this work was performed at the National High Magnetic Field Laboratory, which is supported by the National Science Foundation Cooperative Agreement No. DMR-2128556 and the State of Florida. This work was also carried out in part through the use of MIT.nano’s facilities. The imaging work was supported by the STC Center for Integrated Quantum Materials, NSF grant no. DMR-1231319 and it was performed in part at the Harvard University Center for Nanoscale Systems (CNS), a member of the National Nanotechnology Coordinated Infrastructure Network (NNCI), which is supported by the National Science Foundation under NSF award no. ECCS-2025158.