1Jiangsu Provincial Key Laboratory of Advanced Photonic and Electronic Materials, School of Electronic Science and Engineering, and Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, China 2College of Engineering and Applied Sciences, Nanjing University, Nanjing 210093, China
Abstract:We report a universal transfer methodology for producing artificial heterostructures of large-area freestanding single-crystalline WTe$_{2}$ membranes on diverse target substrates. The transferred WTe$_{2}$ membranes exhibit a nondestructive structure with a carrier mobility comparable to that of as-grown films ($\sim $179–1055 cm$^{2}$$\cdot$V$^{-1}$$\cdot$s$^{-1}$). Furthermore, the transferred membranes show distinct Shubnikov–de Haas quantum oscillations as well as weak localization/weak anti-localization. These results provide a new approach to the development of atom manufacturing and devices based on atomic-level, large-area topological quantum films.
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