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Frontiers in experimental physics often involve extreme environments: the lowest temperatures, the highest energies, the fastest timescales. Over the past two decades, pulsed magnetic fields have moved from a niche technique to an experimental powerhouse, routinely providing access to magnetic fields of up to 100 Tesla—five times what is commercially available. I will describe how we use the 45 Tesla steady-state magnetic fields in Tallahassee, combined with pulsed-fields up to 92 Tesla at LANL, to measure the Fermi surface of the high-Tc superconductor YBa2Cu3O6+x. These experiments give us insight into broken electronic symmetries in the system, and how broken symmetry affects electronic interactions and superconductivity. I will also describe some very recent work that includes taking Weyl semimetals to the quantum limit, and the search for the fractional quantum hall effect in graphene. Host: Amanda Neukirch |