Published February 23, 2015
| Version Published
Journal Article
Open
Optical probing of MgZnO/ZnO heterointerface confinement potential energy levels
Creators
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1.
Institute of Solid State Physics
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2.
Max Planck Institute for Solid State Research
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3.
University of Tokyo
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4.
RIKEN Center for Emergent Matter Science
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5.
Tohoku University
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6.
Japan Science and Technology Agency
Abstract
Low-temperature photoluminescence and reflectance measurements were employed to study the optical transitions present in two-dimensional electron systems confined at Mg_xZn_(1–x)O/ZnO heterojunctions. Transitions involving A- and B-holes and electrons from the two lowest subbands formed within the confinement potential are detected. In the studied density range of 2.0–6.5 × 10¹¹ cm⁻², the inter-subband splitting is measured and the first excited electron subband is shown to be empty of electrons.
Additional Information
© 2015 AIP Publishing LLC. (Received 25 December 2014; accepted 10 February 2015; published online 23 February 2015) V.V.S., A.B.V., and I.V.K. thank the Russian Scientific Foundation (Grant No.14-12-00693) for support in developing reflectance measurements on ZnO heterostructures. This work was partly supported by Grant-in-Aids for Scientific Research (S) No. 24226002 from MEXT, Japan, "Funding Program for World-Leading Innovative R&D on Science and Technology (FIRST)," Program from the Japan Society for the Promotion of Science (JSPS) initiated by the Council for Science and Technology Policy.Attached Files
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Additional details
Identifiers
- Eprint ID
- 102294
- Resolver ID
- CaltechAUTHORS:20200402-144733764
Funding
- Russian Science Foundation
- 14-12-00693
- Ministry of Education, Culture, Sports, Science, and Technology (MEXT)
- 24226002
- Japan Society for the Promotion of Science (JSPS)
- Council for Science and Technology Policy (CSTP)
Dates
- Created
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2020-04-02Created from EPrint's datestamp field
- Updated
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2021-11-16Created from EPrint's last_modified field