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© 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

摘要

The 2‐dimensional electron gas (2DEG) found at the surface of SrTiO3 and related interfaces has attracted significant attention as a promising basis for oxide electronics. In order to utilize its full potential, the response of this 2DEG to structural changes and surface modification must be understood in detail. Here, a study of the detailed electronic structure evolution of the 2DEG as a function of sample temperature and surface step density is presented. By comparing the experimental results with ab initio calculations, it is shown that local structure relaxations cause a metal‐insulator transition of the system around 135 K. This study presents a new and simple way of tuning the 2DEG via surface vicinality and identifies how the operation of prospective devices will respond to changes in temperature.

索引

标题
Universal Structural Influence on the 2D Electron Gas at SrTiO3 Surfaces
作者
Guedes, Eduardo B 1   VIAFID ORCID 标识  ; Muff, Stefan 1   VIAFID ORCID 标识  ; Brito, Walber H 2   VIAFID ORCID 标识  ; Caputo, Marco 3   VIAFID ORCID 标识  ; Li, Hang 4   VIAFID ORCID 标识  ; Plumb, Nicholas C 1   VIAFID ORCID 标识  ; Dil, J Hugo 5   VIAFID ORCID 标识  ; Radović, Milan 1   VIAFID ORCID 标识 

 Photon Science Division, Paul Scherrer Institut, Villigen, Switzerland 
 Departamento de Física, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil 
 Photon Science Division, Paul Scherrer Institut, Villigen, Switzerland; Elettra‐Sincrotrone Trieste, Trieste, Italy 
 Photon Science Division, Paul Scherrer Institut, Villigen, Switzerland; Department of Energy Conversion and Storage, Technical University of Denmark, Kgs. Lyngby, Denmark 
 Photon Science Division, Paul Scherrer Institut, Villigen, Switzerland; Institut de Physique, École Polytechnique Fédérale de Lausanne, Lausanne, Switzerland 
章节
Research Articles
出版年份
2021
出版日期
Nov 2021
出版商
John Wiley & Sons, Inc.
e-ISSN
21983844
来源类型
学术期刊
出版物语言
English
ProQuest 文档 ID
2597985875
版权
© 2021. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.