Abstract
The functionalization of two-dimensional electron gas (2DEG) at oxide interfaces can be realized integrating 2DEG with multifunctional oxide overlayers by epitaxial growth. Using a ferroelectric Pb(Zr0.2Ti 0.8)O3 overlayer on 2DEG (LaAlO3/SrTiO 3), we demonstrate a model system of the functionalized 2DEG, where electrical conductivity of 2DEG can be reversibly controlled with a large on/off ratio (>1000) in a non-volatile way by ferroelectric polarization switching.
Original language | English |
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Pages (from-to) | 4612-4617 |
Number of pages | 6 |
Journal | Advanced Materials |
Volume | 25 |
Issue number | 33 |
DOIs | |
Publication status | Published - 2013 Sept 6 |
Keywords
- epitaxial oxide thin films
- ferroelectric
- multifunctional oxide
- two-dimentional electron gas
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering