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Air-gap gating of MgZnO/ZnO heterostructures

Tambo, T. and Falson, J. and Maryenko, D. and Kozuka, Y. and Tsukazaki, A. and Kawasaki, M. (2014) Air-gap gating of MgZnO/ZnO heterostructures. Journal of Applied Physics, 116 (8). Art. No. 084310. ISSN 0021-8979. doi:10.1063/1.4894155.

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The adaptation of “air-gap” dielectric based field-effect transistor technology to controlling the MgZnO/ZnO heterointerface confined two-dimensional electron system (2DES) is reported. We find it possible to tune the charge density of the 2DES via a gate electrode spatially separated from the heterostructure surface by a distance of 5 μm. Under static gating, the observation of the quantum Hall effect suggests that the charge carrier density remains homogeneous, with the 2DES in the 3 mm square sample the sole conductor. The availability of this technology enables the exploration of the charge carrier density degree of freedom in the pristine sample limit.

Item Type:Article
Related URLs:
URLURL TypeDescription
Falson, J.0000-0003-3183-9864
Kozuka, Y.0000-0001-7674-600X
Tsukazaki, A.0000-0003-0251-063X
Kawasaki, M.0000-0001-6397-4812
Additional Information:© 2014 AIP Publishing LLC. (Received 23 June 2014; accepted 18 August 2014; published online 28 August 2014) We wish to thank to Y. Nakamura, R. Yamazaki, and R. Goto for helpful advice. This work was partly supported by JSPS Grant-in-Aid for Scientific Research(S) No.24226002 and for Young Scientist (A) No. 23686008 and the Japan Society for the Promotion of Science through “Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST Program),” initiated by the Council for Science and Technology Policy (CSTP).
Funding AgencyGrant Number
Japan Society for the Promotion of Science (JSPS)24226002
Japan Society for the Promotion of Science (JSPS)23686008
Council for Science and Technology Policy (CSTP)UNSPECIFIED
Issue or Number:8
Record Number:CaltechAUTHORS:20200402-144734077
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:102297
Deposited By: George Porter
Deposited On:02 Apr 2020 22:49
Last Modified:16 Nov 2021 18:10

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