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.

Design of two-dimensional electron gas systems via polarization discontinuity from large-scale first-principles calculations

2018 ◽  
Vol 6 (25) ◽  
pp. 6680-6690 ◽  
Author(s):  
Jianli Cheng ◽  
Kesong Yang
Keyword(s):  
First Principles ◽  
Large Scale ◽  
Electron Gas ◽  
Perovskite Oxide ◽  
Two Dimensional ◽  
First Principles Calculations ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Efficient Approach ◽  
Dimensional Electron Gas

This work demonstrates an efficient approach to design perovskite-oxide-based two dimensional electron gas systems using large-scale first-principles calculations.

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.

scholarly journals High-mobility two-dimensional electron gas in SrGeO3- and BaSnO3-based perovskite oxide heterostructures: an ab initio study

2016 ◽  
Vol 18 (46) ◽  
pp. 31924-31929 ◽  
Author(s):  
Yaqin Wang ◽  
Wu Tang ◽  
Jianli Cheng ◽  
Safdar Nazir ◽  
Kesong Yang
Keyword(s):  
First Principles ◽  
Electron Gas ◽  
High Mobility ◽  
Perovskite Oxide ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Two Dimensional Electron Gas ◽  
Oxide Heterostructures ◽  
Dimensional Electron Gas ◽  
Structure Calculations

First-principles electronic structure calculations predict that SrGeO3 and BaSnO3 can be substrate materials for achieving a high-mobility two-dimensional electron gas in perovskite oxide heterostructures.

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