The origin of two-dimensional electron gas formed in LaGaO 3 /SrTiO 3
| Autor: | Fu-Ning Wang, Yanling Du, Liangmo Mei, Han-Zhang Liu, Xinhua Zhang, Chunlei Wang, Jichao Li, Jian Liu |
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| Rok vydání: | 2015 |
| Předmět: |
Field (physics)
Condensed matter physics Chemistry Degenerate energy levels Relaxation (NMR) General Physics and Astronomy Heterojunction Surfaces and Interfaces General Chemistry Condensed Matter Physics Surfaces Coatings and Films Metal Crystal Atomic orbital visual_art visual_art.visual_art_medium Fermi gas |
| Zdroj: | Applied Surface Science. 355:1316-1320 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2015.08.242 |
| Popis: | The first-principles calculations are employed to investigate the electrical properties of (0 0 1) epitaxial LaGaO3/SrTiO3 heterostructure. It is found that the interface remains metallic and the atomic displacements occur mostly in the SrTiO3 side after atomic relaxation. The interface crystal field induces the Ti t2g orbitals to split into the nondegenerate dxy and two-fold degenerate dxz/yz orbitals. The partly filled nondegenerate dxy orbitals are the origin of two-dimensional electron gas at the interface of LaGaO3/SrTiO3 (0 0 1). |
| Databáze: | OpenAIRE |
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