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Title: Two-dimensional electron gas in GaAs/SrHfO{sub 3} heterostructure

Abstract

The III-V/perovskite-oxide system can potentially create new material properties and new device applications by combining the rich properties of perovskite-oxides together with the superior optical and electronic properties of III-Vs. The structural and electronic properties of the surface and interface are studied using first-principles calculations for the GaAs/SrHfO{sub 3} heterostructure. We investigate the specific adsorption sites and the atomic structure at the initial growth stage of GaAs on the SrHfO{sub 3} (001) substrate. Ga and As adsorption atoms preferentially adsorb at the top sites of oxygen atoms under different coverage. The energetically favorable interfaces are presented among the atomic arrangements of the GaAs/SrHfO{sub 3} interfaces. Our calculations predict the existing of the two-dimensional electron gas in the GaAs/SrHfO{sub 3} heterostructure.

Authors:
 [1];  [2]; ; ; ; ;  [1]
  1. Department of Physics, China University of Mining and Technology, Xuzhou 221116 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22596819
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 119; Journal Issue: 23; Other Information: (c) 2016 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ADSORPTION; ATOMS; ELECTRON GAS; GALLIUM ARSENIDES; HAFNIUM OXIDES; INTERFACES; OXYGEN; PEROVSKITE; STRONTIUM OXIDES; SUBSTRATES; SURFACES; TWO-DIMENSIONAL CALCULATIONS

Citation Formats

Wang, Jianli, E-mail: jlwang@cumt.edu.cn, Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, Yuan, Mengqi, Tang, Gang, Li, Huichao, Zhang, Junting, and Guo, Sandong. Two-dimensional electron gas in GaAs/SrHfO{sub 3} heterostructure. United States: N. p., 2016. Web. doi:10.1063/1.4954076.
Wang, Jianli, E-mail: jlwang@cumt.edu.cn, Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, Yuan, Mengqi, Tang, Gang, Li, Huichao, Zhang, Junting, & Guo, Sandong. Two-dimensional electron gas in GaAs/SrHfO{sub 3} heterostructure. United States. doi:10.1063/1.4954076.
Wang, Jianli, E-mail: jlwang@cumt.edu.cn, Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093, Yuan, Mengqi, Tang, Gang, Li, Huichao, Zhang, Junting, and Guo, Sandong. 2016. "Two-dimensional electron gas in GaAs/SrHfO{sub 3} heterostructure". United States. doi:10.1063/1.4954076.
@article{osti_22596819,
title = {Two-dimensional electron gas in GaAs/SrHfO{sub 3} heterostructure},
author = {Wang, Jianli, E-mail: jlwang@cumt.edu.cn and Laboratory of Solid State Microstructures and School of Physics, Nanjing University, Nanjing 210093 and Yuan, Mengqi and Tang, Gang and Li, Huichao and Zhang, Junting and Guo, Sandong},
abstractNote = {The III-V/perovskite-oxide system can potentially create new material properties and new device applications by combining the rich properties of perovskite-oxides together with the superior optical and electronic properties of III-Vs. The structural and electronic properties of the surface and interface are studied using first-principles calculations for the GaAs/SrHfO{sub 3} heterostructure. We investigate the specific adsorption sites and the atomic structure at the initial growth stage of GaAs on the SrHfO{sub 3} (001) substrate. Ga and As adsorption atoms preferentially adsorb at the top sites of oxygen atoms under different coverage. The energetically favorable interfaces are presented among the atomic arrangements of the GaAs/SrHfO{sub 3} interfaces. Our calculations predict the existing of the two-dimensional electron gas in the GaAs/SrHfO{sub 3} heterostructure.},
doi = {10.1063/1.4954076},
journal = {Journal of Applied Physics},
number = 23,
volume = 119,
place = {United States},
year = 2016,
month = 6
}
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