تقرير
Tuning the two-dimensional electron liquid at oxide interfaces by buffer-layer-engineered redox reactions
| العنوان: | Tuning the two-dimensional electron liquid at oxide interfaces by buffer-layer-engineered redox reactions |
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| المؤلفون: | Chen, Y. Z., Green, R. J., Sutarto, R., He, F., Linderoth, S., Sawatzky, G. A., Pryds, N. |
| سنة النشر: | 2017 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Materials Science |
| الوصف: | Polar discontinuities and redox reactions provide alternative paths to create two-dimensional electron liquids (2DELs) at oxide interfaces. Herein, we report high mobility 2DELs at interfaces involving SrTiO3 (STO) achieved using polar La7/8Sr1/8MnO3 (LSMO) buffer layers to manipulate both polarities and redox reactions from disordered overlayers grown at room temperature. Using resonant x-ray reflectometry experiments, we quantify redox reactions from oxide overlayers on STO as well as polarity induced electronic reconstruction at epitaxial LSMO/STO interfaces. The analysis reveals how these effects can be combined in a STO/LSMO/disordered film trilayer system to yield high mobility modulation doped 2DELs, where the buffer layer undergoes a partial transformation from perovskite to brownmillerite structure. This uncovered interplay between polar discontinuities and redox reactions via buffer layers provides a new approach for the design of functional oxide interfaces. Comment: Nano Letters, 2017 |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1021/acs.nanolett.7b03744 |
| الوصول الحر: | http://arxiv.org/abs/1710.08121Test |
| رقم الانضمام: | edsarx.1710.08121 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1021/acs.nanolett.7b03744 |
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