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  Magneto-optical confirmation of Landau level splitting in a GaN/AlGaN 2DEG grown on bulk GaN

Schmult, S., Solovyev, V. V., Wirth, S., Großer, A., Mikolajick, T., & Kukushkin, I. V. (2019). Magneto-optical confirmation of Landau level splitting in a GaN/AlGaN 2DEG grown on bulk GaN. Journal of Vacuum Science and Technology B, 37(2): 021210, pp. 1-5. doi:10.1116/1.5088927.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0003-63B8-E Version Permalink: http://hdl.handle.net/21.11116/0000-0003-63BA-C
Genre: Journal Article

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 Creators:
Schmult, Stefan1, Author
Solovyev, Victor V.1, Author
Wirth, Steffen2, Author              
Großer, Andreas1, Author
Mikolajick, Thomas1, Author
Kukushkin, Igor V.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863460              

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 Abstract: Landau level splitting in a two-dimensional electron gas (2DEG) confined in an ultrapure GaN/AlGaN heterostructure grown by molecular beam epitaxy on bulk GaN is verified spectroscopically. The Landau level fan reconstructed from magneto-photoluminescence (PL) data yields an effective mass of 0.24m(0) for the 2D electrons. Narrow excitonic PL line widths < 100 mu eV, an atomically flat surface of the layer stack, as well as the absence of the 2DEG in the dark environment, are important ancillary experimental findings while focusing on magneto-PL investigations of the heterostructure. Simultaneously recorded Shubnikov-de Haas and magneto-PL intensity oscillations under steady UV illumination exhibit an identical frequency and allow for two independent ways of determining the 2D density. Published by the AVS.

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Language(s): eng - English
 Dates: 2019-03-112019-03-11
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000462090900010
DOI: 10.1116/1.5088927
 Degree: -

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Title: Journal of Vacuum Science and Technology B
  Other : J. Vac. Sci. Techn. B
  Other : JVST B
Source Genre: Journal
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Publ. Info: New York : Published by AVS through the American Institute of Physics
Pages: - Volume / Issue: 37 (2) Sequence Number: 021210 Start / End Page: 1 - 5 Identifier: ISSN: 0734-2101
CoNE: https://pure.mpg.de/cone/journals/resource/954928495416