Strong interfacial coupling effects of ferroelectric polarization with two-dimensional electron gas in BaTiO3/MgO/AlGaN/GaN/Si heterostructures

2019 ◽  
Vol 7 (19) ◽  
pp. 5677-5685 ◽  
Author(s):  
Guanjie Li ◽  
Xiaomin Li ◽  
Junliang Zhao ◽  
Qiuxiang Zhu ◽  
Yongbo Chen
Keyword(s):  
Threshold Voltage ◽  
Electron Gas ◽  
Ferroelectric Polarization ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Interfacial Coupling ◽  
Coupling Effects ◽  
Two Dimensional Electron Gas ◽  
Dimensional Electron Gas

Strong interfacial coupling between ferroelectric polarization and 2DEG is demonstrated in BTO/MgO/AlGaN/GaN/Si with a large threshold voltage for E-mode HEMT devices.

Two-dimensional electron gas and its electric control at the interface between ferroelectric and antiferromagnetic insulator studied from first principles

2015 ◽  
Vol 17 (19) ◽  
pp. 12812-12825 ◽  
Author(s):  
Vladislav Borisov ◽  
Sergey Ostanin ◽  
Ingrid Mertig
Keyword(s):  
First Principles ◽  
Electron Gas ◽  
Ferroelectric Polarization ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Oxide Interface ◽  
Two Dimensional Electron Gas ◽  
Electric Control ◽  
Dimensional Electron Gas ◽  
And Control

Using first-principles methods we demonstrate the possibility of using the ferroelectric polarization to create and control a two-dimensional electron gas at a multiferroic oxide interface.

Suppression of metal-to-insulator transition using strong interfacial coupling at cubic and orthorhombic perovskite oxide heterointerfaces

Nanoscale ◽  
2021 ◽  
Author(s):  
Woonbae Sohn ◽  
Taemin Ludvic Kim ◽  
Tae Hyung Lee ◽  
Sangmoon Yoon ◽  
Chungsoo Kim ◽  
...  
Keyword(s):  
Electron Gas ◽  
Perovskite Oxide ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Interfacial Coupling ◽  
Two Dimensional Electron Gas ◽  
Metal To Insulator Transition ◽  
Orthorhombic Perovskite ◽  
Dimensional Electron Gas ◽  
Significant Attention

A quasi-two-dimensional electron gas (2DEG) evolved at the LaAlO3 (LAO)/SrTiO3 (STO) interface has attracted significant attention, because the insertion of perovskite titanates can tune the 2DEG conductivity.

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