Critical prethermal discrete time crystal created by two-frequency driving

We report the observation of long-lived Floquet prethermal discrete time crystalline (PDTC) order in a three-dimensional position-disordered lattice of interacting dipolar-coupled 13C nuclei in diamond at room temperature. We demonstrate a novel strategy of "two-frequency" driving, involving an interleaved application of slow and fast drives that simultaneously prethermalize the spins with an emergent quasi-conserved magnetization along the x-axis, while enabling continuous and highly resolved observation of their dynamic evolution when periodically kicked away from x. The PDTC order manifests itself in a robust period doubling response of this drive-induced quasi-conserved spin magnetization interchanging between x and -x; our experiments allow a unique means to study the formation and melting of PDTC order. This dataset contains the raw data for the main text of the paper "Critical prethermal discrete time crystal created by two-frequency driving" found at arXiv:2201.02162, DOI: https://arxiv.org/abs/2201.02162. The authors encourage anyone to reach out with any questions or further help interpreting our results.