| ชื่อเรื่อง | : | Gate-tuned quantum oscillations of topological surface states in β-Ag2Te |
| นักวิจัย | : | Sulaev, Azat , Zhu, Weiguang , Teo, Kie Leong , Wang, Lan |
| คำค้น | : | DRNTU::Science::Physics::Atomic physics::Quantum theory |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2558 |
| อ้างอิง | : | Sulaev, A., Zhu, W., Teo, K. L., & Wang, L. (2015). Gate-tuned quantum oscillations of topological surface states in β-Ag2Te. Scientific reports, 5. , 2045-2322 , http://hdl.handle.net/10220/25158 , http://dx.doi.org/10.1038/srep08062 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Scientific report |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | We report the strong experimental evidence of the existence of topological surface states with large electric field tunability and mobility in β-Ag2Te. Pronounced 2D Shubnikov-de Haas oscillations have been observed in β-Ag2Te nanoplates. A Berry phase is determined to be near π using the Landau level fan diagram for a relatively wide nanoplate while the largest electric field ambipolar effect in topological insulator so far (~2500%) is observed in a narrow nanoplate. The π Berry phase and the evolution of quantum oscillations with gate voltage (Vg) in the nanoplates strongly indicate the presence of topological surface states in β-Ag2Te. Moreover, the mobility of the narrow Ag2Te nanoplate is about several thousand cm2s−1V−1. Our results suggest that β-Ag2Te has the potential to become an important material in the investigation of topological insulators. |
| บรรณานุกรม | : |
Sulaev, Azat , Zhu, Weiguang , Teo, Kie Leong , Wang, Lan . (2558). Gate-tuned quantum oscillations of topological surface states in β-Ag2Te.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Sulaev, Azat , Zhu, Weiguang , Teo, Kie Leong , Wang, Lan . 2558. "Gate-tuned quantum oscillations of topological surface states in β-Ag2Te".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Sulaev, Azat , Zhu, Weiguang , Teo, Kie Leong , Wang, Lan . "Gate-tuned quantum oscillations of topological surface states in β-Ag2Te."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2558. Print. Sulaev, Azat , Zhu, Weiguang , Teo, Kie Leong , Wang, Lan . Gate-tuned quantum oscillations of topological surface states in β-Ag2Te. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2558.
|
ridm@nrct.go.th ระบบคลังข้อมูลงานวิจัยไทย รายการโปรดที่คุณเลือกไว้
