Oxide interface; LaAlO3/SrTiO3, Dr. Kiyoung Lee, TFM

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• Dr. Kiyoung Lee, TFM
• Thursday 22 November 2012, 14:30-16:00
• Mott Seminar Room, Cavendish Laboratory.

If you have a question about this talk, please contact Kimberly Cole.

Since the first observation of high mobility electron gas at LaAlO3 (LAO) and SrTiO3 (STO) interface in 2004, the research on complex oxide heterostructures have been fertile for its potential electronic applications. It has also been diverging to other physical phenomena to electric field tunable superconductivity, metal-insulator transition, and coexistence of superconductivity and ferromagnetism. In this talk, I will introduce what we have recently observed in a LAO /STO heterostructure via persistent photoconductivity effect following a brief overview of this research area. We are able to stablise the high mobility two dimensional HOLE gas at the surface in coexistence with an electron gas at the interface. A series of Shubnikov-de Haas oscillations in various gate voltages allows to see the hole gas with a density of 3×10^{11 cm}-2 and a mobility of 10,000 cm^2/Vs.

This talk is part of the Thin Film Magnetic Talks series.

This talk is included in these lists:

• Mott Seminar Room, Cavendish Laboratory
• Thin Film Magnetic Talks

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