Quantum oscillations and subband properties of the two-dimensional electron gas at the laalo3/srtio3 interface

Autor: Alix McCollam, S. Wenderich, Mark Huijben, David H.A. Blank, M. K. Kruize, Hans Hilgenkamp, V. K. Guduru, Guus Rijnders, Alexander Brinkman, Gertjan Koster, H. J. A. Molegraaf, Jan C. Maan, Uli Zeitler
Přispěvatelé: Faculty of Science and Technology, Interfaces and Correlated Electron Systems, Inorganic Materials Science
Rok vydání: 2014
Předmět:
Electron mobility
Materials science
lcsh:Biotechnology
FOS: Physical sciences
02 engineering and technology
Correlated Electron Systems / High Field Magnet Laboratory (HFML)
01 natural sciences
Shubnikov–de Haas effect
Condensed Matter - Strongly Correlated Electrons
symbols.namesake
Condensed Matter::Materials Science
Effective mass (solid-state physics)
lcsh:TP248.13-248.65
0103 physical sciences
General Materials Science
010306 general physics
Condensed Matter - Materials Science
Strongly Correlated Electrons (cond-mat.str-el)
Condensed matter physics
Fermi level
General Engineering
Materials Science (cond-mat.mtrl-sci)
Quantum oscillations
Heterojunction
Fermi energy
021001 nanoscience & nanotechnology
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
lcsh:QC1-999
symbols
Condensed Matter::Strongly Correlated Electrons
0210 nano-technology
Fermi gas
lcsh:Physics
Zdroj: Apl Materials, 2, 2
APL Materials, Vol 2, Iss 2, Pp 022102-022102-7 (2014)
Apl Materials, 2
APL materials, 2(2):022102. American Institute of Physics
ISSN: 2166-532X
Popis: We have performed high field magnetotransport measurements to investigate the interface electron gas in a high mobility SrTiO3/SrCuO2/LaAlO3/SrTiO3 heterostructure. Shubnikov-de Haas oscillations reveal several 2D conduction subbands with carrier effective masses of 0.9m e and 2m e , quantum mobilities of order 2000 cm2/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.
Databáze: OpenAIRE
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