Skip to main content
banner image
No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
1.A. Splendiani, L. Sun, Y. Zhang, T. S. Li, J. Kim, C.-Y. Chim, G. Galli, and F. Wang, Nano Lett. 10, 1271 (2010).
2.Y. Zhang, Y.-W. Tan, H. L. Stormer, and P. Kim, Nature 438, 201 (2005).
3.C.-Z. Chang, J. S. Zhang, X. Feng, J. Shen, Z. C. Zhang, M. H. Guo, K. Li, Y. B. Ou, P. Wei, L.-L. Wang, Z.-Q. Ji, Y. Feng, S. H. Ji, X. Chen, J. F. Jia, X. Dai, Z. Fang, S.-C. Zhang, K. He, Y. Y. Wang, L. Lu, X.-C. Ma, and Q.-K. Xue, Science 340, 167 (2013).
4.A. Ohtomo and H. Y. Hwang, Nature 427, 423 (2004).
5.H. X. Liang, L. Cheng, X. F. Zhai, N. Pan, H. L. Guo, J. Zhao, H. Zhang, L. Li, X. Q. Zhang, X. P. Wang, C. G. Zeng, Z. Y. Zhang, and J. G. Hou, Scientific Reports 3, 1975 (2013).
6.T. Feng, Phys. Rev. B 25, 627 (1982).
7.H. Yasuda and Y. Kanemitsu, Phys. Rev. B 77, 193202 (2008).
8.Y. Yamada, H. K. Sato, Y. Hikita, H. Y. Hwang, and Y. Kanemitsu, Proc. SPIE, Oxide-based Materials and Devices V 8987, 898710 (March 8, 2014).
9.D. Kan, T. Terashima, R. Kanda, A. Masuno, K. Tanaka, S. Chu, H. Kan, A. Ishizumi, Y. Kanemitsu, Y. Shimakawa, and M. Takano, Nature Mater. 4, 816 (2005).
10.A. Kalabukhov, R. Gunnarsson, J. Borjesson, E. Olsson, T. Claeson, and D. Winkler, Phys. Rev. B 75, 121404(R) (2007).
11.D. F. Li, S. Gariglio, C. Cancellieri, A. Fête, D. Stornaiuolo, and J.-M. Triscone, APL Materials 2, 012102 (2014).
12.H. J. Harsan Ma, Z. Huang, W. M. , A. Annadi, S. W. Zeng, L. M. Wong, S. J. Wang, T. Venkatesan, and Ariando, Appl. Phys. Lett. 105, 011603 (2014).
13.Y. Yamada, H. Yasuda, T. Tayagaki, and Y. Kanemitsu, Phys. Rev. Lett. 102, 247401 (2009).
14.L. F. dos Santos, Yu. A. Pusep, L. Villegas-Lelovsky, V. Lopez-Richard, G. E. Marques, G. M. Gusev, D. Smirnov, and A. K. Bakarov, Phys. Rev. B 86, 125415 (2012).
15.T. S. Li and H. J. Lozykowski, MRS Proceedings 358, 1011 (1994).

Data & Media loading...


Article metrics loading...



We report emerging photoluminescence (PL) of bilayer two-dimensional electron gases (2DEG) in LaAlO/SrTiO (LAO/STO) systems. A strong blue PL emerges in bilayer-2DEGs in LAO/STO/LAO/STO which doesn’t show in LAO/STO. PL band in bilayer-2DEGs includes both nearly temperature independent Auger recombination and temperature dependent free electron trapping while it crossovers from Auger recombination to single carrier trapping in LAO/STO. The PL signal of free electron trapping appears at high temperatures and it is much stronger than Auger recombination in the conducting channel in bilayer 2DEGs. This observation shows that high mobility carriers dominate the carrier dynamics in bilayer-2DEGs in LAO/STO superlattices.


Full text loading...


Access Key

  • FFree Content
  • OAOpen Access Content
  • SSubscribed Content
  • TFree Trial Content
752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd