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Quantum Hall Effect in Polar Oxide Heterostructures
Abstract
We observed Shubnikov–de Haas oscillation and the quantum Hall effect in a high-mobility two-dimensional electron gas in polar ZnO/Mg x Zn 1– x O heterostructures grown by laser molecular beam epitaxy. The electron density could be controlled in a range of 0.7 × 10 12 to 3.7 × 10 12 per square centimeter by tuning the magnesium content in the barriers and the growth polarity. From the temperature dependence of the oscillation amplitude, the effective mass of the two-dimensional electrons was derived as 0.32 ± 0.03 times the free electron mass. Demonstration of the quantum Hall effect in an oxide heterostructure presents the possibility of combining quantum Hall physics with the versatile functionality of metal oxides in complex heterostructures.
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Cites
Electronic properties of two-dimensional systems
Ando, T., Fowler, A. B., & Stern, F. (1982) · Reviews of Modern Physics · doi:10.1103/revmodphys.54.437 · Cited by 7,455
Observation of an even-denominator quantum number in the fractional quantum Hall effect
Willett, R., Eisenstein, J. P., Störmer, H. L., Tsui, D. C., Gossard, A. C., & English, J. H. (1987) · Physical Review Letters · doi:10.1103/physrevlett.59.1776 · Cited by 1,135
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Tzalenchuk, A., Lara-Avila, S., Kalaboukhov, A., Paolillo, S., Syväjärvi, M., Yakimova, R., Kazakova, O., Janssen, T. J. B. M., Fal'ko, V., & Kubatkin, S. (2010) · Nature Nanotechnology · doi:10.1038/nnano.2009.474 · Cited by 486
Quantum Hall effect in black phosphorus two-dimensional electron system
Li, L., Yang, F., Ye, G. J., Zhang, Z., Zhu, Z., Lou, W., Zhou, X., Li, L., Watanabe, K., Taniguchi, T., et al. (2016) · Nature Nanotechnology · doi:10.1038/nnano.2016.42 · Cited by 431
Free-electron gas at charged domain walls in insulating BaTiO3
Sluka, T., Tagantsev, A. K., Bednyakov, P., & Setter, N. (2013) · Nature Communications · doi:10.1038/ncomms2839 · Cited by 431
Robertson, J., & Clark, S. J. (2011) · Physical Review B · doi:10.1103/physrevb.83.075205 · Cited by 301
Creating emergent phenomena in oxide superlattices
Ramesh, R., & Schlom, D. G. (2019) · Nature Reviews Materials · doi:10.1038/s41578-019-0095-2 · Cited by 284
Metadata
- Authors
- Tsukazaki, A., Ohtomo, A., Kita, T., Ohno, Y., Ohno, H., & Kawasaki, M.
- Venue
- Science
- Published
- 2007-03-09
- Volume
- 315
- Issue
- 5817
- Pages
- 1388-1391
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2054552883
- Cited by
- 576
- References
- 2
- FWCI
- 29.94
- Type
- journal article
- Language
- en
- Open access
- closed
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- Tsukazaki, A., Ohtomo, A., Kita, T., Ohno, Y., Ohno, H., & Kawasaki, M. (2007). Quantum Hall Effect in Polar Oxide Heterostructures. Science. https://doi.org/10.1126/science.1137430
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Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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