| Autor: |
Kajdos, Adam P., Ouellette, Daniel G., Cain, Tyler A., Stemmer, Susanne |
| Předmět: |
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| Zdroj: |
Applied Physics Letters; 8/19/2013, Vol. 103 Issue 8, p082120, 4p, 1 Chart, 4 Graphs |
| Abstrakt: |
A two-dimensional electron gas (2DEG) in SrTiO3 is created via modulation doping by interfacing undoped SrTiO3 with a wider-band-gap material, SrTi1-xZrxO3, which is doped n-type with La. All layers are grown using hybrid molecular beam epitaxy. Using magnetoresistance measurements, we show that electrons are transferred into the SrTiO3, and a 2DEG is formed. In particular, Shubnikov-de Haas oscillations are shown to depend only on the perpendicular magnetic field. Experimental Shubnikov-de Haas oscillations are compared with calculations that assume multiple occupied subbands. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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