Quantum oscillations and subband properties of the two-dimensional electron gas at the LaAlO3/SrTiO3 interface
We have performed high field magnetotransport measurements to investigate the interface electron gas in LaAlO3/SrTiO3 heterostructures. Shubnikov-de Haas oscillations reveal several 2D conduction subbands with carrier effective masses between 1 and 3 m_e, quantum mobilities of order 3000 cm^2/V s, a...
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| creator | McCollam, A Wenderich, S Kruize, M K Guduru, V K Molegraaf, H J A Huijben, M Koster, G Blank, D H A Rijnders, G Brinkman, A Hilgenkamp, H Zeitler, U Maan, J C |
| description | We have performed high field magnetotransport measurements to investigate the interface electron gas in LaAlO3/SrTiO3 heterostructures. Shubnikov-de Haas oscillations reveal several 2D conduction subbands with carrier effective masses between 1 and 3 m_e, quantum mobilities of order 3000 cm^2/V s, and band edges only a few millielectronvolts below the Fermi energy. Measurements in tilted magnetic fields confirm the 2D character of the electron gas, and show evidence of inter-subband scattering. |
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| language | eng |
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| source | Freely Accessible Journals |
| subjects | Electron gas Electrons Heterostructures Oscillations Strontium titanates |
| title | Quantum oscillations and subband properties of the two-dimensional electron gas at the LaAlO3/SrTiO3 interface |
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