Atomic-Scale Observation of Initial Growth Process of Homoepitaxial SrTiO3 Thin Films

• IWAYA Katsuya

  Tohoku University

• OHSAWA Takeo

  Tohoku University

• SHIMIZU Ryota

  Tohoku University

• HITOSUGI Taro

  Tohoku University

Bibliographic Information

Other Title

• ＳｒＴｉＯ３ホモエピタキシャル薄膜成長初期過程の原子スケール観察
• SrTiO ₃ ホモエピタキシャル ハクマク セイチョウ ショキ カテイ ノ ゲンシ スケール カンサツ

Abstract

The surface structures of SrTiO₃ thin films homoepitaxially grown by pulsed laser deposition (PLD) were studied using low temperature scanning tunneling microscopy (STM). We suggest microscopic pictures of the near-surface stoichiometry of SrTiO₃ thin films, depending on their thickness and the growth mode. For comparison, an atomically ordered surface of SrTiO₃ single crystal that is robust under typical thin film growth condition is shown. We atomically visualize the initial growth of homoepitaxial SrTiO₃ thin film on this well-defined substrate, indicating that the surface structure of the substrate can be transferred to the film surface. Atomic-scale understanding of the surface structure of the substrate and the initial process of the thin film growth will provide new approach to realize oxide heterointerfaces that are controlled truly on an atomic scale.

Journal

• Nihon Kessho Gakkaishi

  Nihon Kessho Gakkaishi 53 (5), 353-358, 2011

  The Crystallographic Society of Japan

Details

• CRID: 1390282679066441216
• NII Article ID: 10029829790
• NII Book ID: AN00188364
• DOI: 10.5940/jcrsj.53.353
• ISSN: 18845576
• ISSN: 03694585
• NDL BIB ID: 023243481
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I023243481
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed