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Large zero-field spin splitting in AlGaN/AlN/GaN/AlN heterostructures
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lişesivdin, Sefer Bora Balkan, Naci Makarovsky, Oleg Patanè, Amalia Yildiz, Abdulazim Caliskan, Mehmet Deniz Kasap, Mehmet Özçelik, Süleyman Ozbay, Ekmel |
| Copyright Year | 2009 |
| Abstract | This work describes Shubnikov–de Haas (SdH) measurements in Al0.22Ga0.78N/AlN/GaN/AlN heterostructures. Our experiments coupled with the analysis of the Hall data at various temperatures confirm the formation of a two-dimensional electron gas (2DEG) at the AlN/GaN interface. A beating pattern in the SdH oscillations is also observed and attributed to a zero-field spin splitting of the 2DEG first energy subband. The values of the effective spin-orbit coupling parameter and zero-field spin-split energy are estimated and compared with those reported in the literature. We show that zero-field spin-split energy tends to increase with increasing sheet electron density and that our value (12.75 meV) is the largest one reported in the literature for GaN-based heterostructures. |
| Starting Page | 093701 |
| Ending Page | 093701 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1063/1.3120782 |
| Volume Number | 105 |
| Alternate Webpage(s) | http://yoksis.bilkent.edu.tr/pdf/files/10.1063-1.3120782.pdf |
| Alternate Webpage(s) | http://yoksis.bilkent.edu.tr/doi_getpdf/articles/10.1063-1.3120782.pdf |
| Alternate Webpage(s) | http://www.nanotam.bilkent.edu.tr/publications/2009/2009-20.pdf |
| Alternate Webpage(s) | https://doi.org/10.1063/1.3120782 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
