Related Experiment Video
Updated: Jun 5, 2026

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
Published on: May 13, 2020
Onset of in-plane ferroelectricity in the vanadium dioxide (VO2) mott insulator for in-memory computing applications
Mircea Dragoman1, Florin Nastase1, Mircea Modreanu2
1National Institute for Research and Development in Microtechnologies, IMT-Bucharest, Voluntari, Romania.
Abstract:
We present experimental results on VO2, which is the most utilized Mott material, grown by atomic layer deposition on single-crystalline Si (100) (VO2/Si) wafers and followed by thermal treatment at 500 °C for different times: 30, 60 and 90 min. All these structures have shown in-plane ferroelectricity, the best results being obtained for VO2treated thermically at 500 °C during 60 min. The remanent polarization in this case is 100μC cm-2at room temperature at coercive voltages ±10 V. Current-voltage and polarization-voltage dependences at various temperatures have shown that VO2has a reversible insulator-metal transition at 66 °C.
Related Concept Videos
MOS Capacitor
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
Non-ohmic Devices
Consider a simple circuit consisting of a battery, a diode, and a resistor. A diode...
Ferromagnetism
Dielectric Polarization in a Capacitor
MOSFET: Enhancement Mode
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no current...
Biasing of Metal-Semiconductor Junctions
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...

