期刊
PHYSICAL REVIEW LETTERS
卷 118, 期 23, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.118.236801
关键词
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资金
- National Science Foundation (NSF) through the Nebraska Materials Research Science and Engineering Center (MRSEC) [DMR-1420645]
- NSF CAREER [DMR-1148783]
- NSF [OIA-1538893, ECCS: 1542182]
- U.S. Department of Energy (DOE), Office of Science, Basic Energy Sciences (BES) [DE-SC0016153]
- Nebraska Research Initiative
- U.S. Department of Energy (DOE) [DE-SC0016153] Funding Source: U.S. Department of Energy (DOE)
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1148783] Funding Source: National Science Foundation
We exploit scanning-probe-controlled domain patterning in a ferroelectric top layer to induce nonvolatile modulation of the conduction characteristic of monolayer MoS2 between a transistor and a junction state. In the presence of a domain wall, MoS2 exhibits rectified I-V characteristics that are well described by the thermionic emission model. The induced Schottky barrier height Feff B varies from 0.38 to 0.57 eV and is tunable by a SiO2 global back gate, while the tuning range of Feff B depends sensitively on the conduction-band-tail trapping states. Our work points to a new route to achieving programmable functionalities in van der Waals materials and sheds light on the critical performance limiting factors in these hybrid systems.
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