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Title: Nonvolatile Memristive Effect in Few-Layer CrI3 Driven by Electrostatic Gating

Journal Article · · Nano Letters

The potential of memristive devices for applications in nonvolatile memory and neuromorphic computing has sparked considerable interest, particularly in exploring memristive effects in two-dimensional (2D) magnetic materials. However, the progress in developing nonvolatile, magnetic field-free memristive devices using 2D magnets has been limited. In this work, we report an electrostatic-gating-induced nonvolatile memristive effect in CrI3-based tunnel junctions. The few-layer CrI3-based tunnel junction manifests notable hysteresis in its tunneling resistance as a function of gate voltage. We further engineered a nonvolatile memristor using the CrI3 tunneling junction with low writing power and at zero magnetic field. We show that the hysteretic transport observed is not a result of trivial effects or inherent magnetic properties of CrI3. We propose a potential association between the memristive effect and the newly predicted ferroelectricity in CrI3 via gating-induced Jahn–Teller distortion. Furthermore, our work illuminates the potential of 2D magnets in developing next-generation advanced computing technologies.

Research Organization:
University of Wyoming, Laramie, WY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division (MSE); U.S. National Science Foundation (NSF); JSPS KAKENHI
Grant/Contract Number:
SC0020074; SC0021281; SC0024188
OSTI ID:
2278934
Alternate ID(s):
OSTI ID: 2335860; OSTI ID: 2335861; OSTI ID: 2341716
Journal Information:
Nano Letters, Journal Name: Nano Letters Journal Issue: 24 Vol. 23; ISSN 1530-6984
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English

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