fig20

Figure 20. Research progress in hafnium oxide-based materials^{[4,21,32,79,84,143,145,153]}. Reprinted from Ref.^[4], with permission from AIP Publishing. Reprinted from Ref.^[21], with permission from AAAS. Reprinted from Ref.^[32], with permission from AAAS. Reprinted from Ref.^[79], with permission from Springer Nature. Reprinted from Ref.^[84], with permission from IOP Publishing. Reprinted from Ref.^[143], Copyright (2022), with permission from Elsevier. Copyright (2020) American Chemical Society. Reprinted from^[145], with permission from AIP Publishing. Reprinted (adapted) with permission from Ref.^[153].