Defect contrast with 4D-STEM: Understanding crystalline order with virtual detectors and beam modification

4D-STEM datasets from Ribet, S.M., Ophus, C., Reis, R.D. and Dravid, V.P "Defect contrast with 4D-STEM: Applications of virtual detectors and beam modification." (2022). The files here are: 1. PbTiO3 with a 2 mrad convergence angle 2. graphene with an 8, 14, and 20 mrad convergence angleThis material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research (SCGSR) program. The SCGSR program is administered by the Oak Ridge Institute for Science and Education for the DOE under contract number DE‐SC0014664. SMR acknowledges support from the IIN Ryan Fellowship and the 3M Northwestern Graduate Research Fellowship. This material is based upon work supported by the National Science Foundation under Grant No. DMR-1929356. This work made use of the EPIC facility of Northwestern University's NU\textit{ANCE} Center, which has received support from the SHyNE Resource (NSF ECCS-2025633), the International Institute of Nanotechnology (IIN), and Northwestern's MRSEC program (NSF DMR-1720139). Work at the Molecular Foundry was supported by the Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy under contract number DE-AC02-05CH11231