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- Title
Femtojoule‐Power‐Consuming Synaptic Memtransistor Based on Mott Transition of Multiphasic Vanadium Oxides.
- Authors
Iqbal, Shahid; Duy, Le Thai; Kang, Hyunwoo; Singh, Ranveer; Kumar, Mohit; Park, Jucheol; Seo, Hyungtak
- Abstract
To realize the potential of Mott transition of multiphasic vanadium oxides (VOx) for memory applications, the development of VOx memtransistors on SiO2 wafer is introduced. Through electrical characterizations, the volatile memory behaviors of the VOx memtransistors are observed in both two‐ and three‐terminal measurements. Their capacitive memory and resistive switching mechanisms are strongly related to the mixed VOx/SiO2 interface (called VSiOx). VSiOx supports the Mott transition in VOx at low bias voltages (<0.5 V), leading to the low power consumption of the memtransistor. Moreover, the fast switching time (≈35 ns) and tunable memory retention with the synaptic functions (potentiation and depression) of the memtransistors (by using the gate and drain biases) are demonstrated. Overall, the findings open up major opportunities for constructing ultrafast and femto‐joule power‐consuming neuromorphic devices.
- Subjects
METAL-insulator transitions; VANADIUM oxide; THIN film transistors; NONVOLATILE random-access memory; INDIUM gallium zinc oxide
- Publication
Advanced Functional Materials, 2021, Vol 31, Issue 46, p1
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.202102567