| 標題：High spin state driven magnetism and thermoelectricity in Mn doped topological insulator Bi2Se3 | |
|---|---|
| 學年 | 106 |
| 學期 | 2 |
| 出版（發表）日期 | 2018/06/15 |
| 作品名稱 | High spin state driven magnetism and thermoelectricity in Mn doped topological insulator Bi2Se3 |
| 作品名稱（其他語言） | |
| 著者 | V. K. Maurya; C. L. Dong; C. L. Chen; K. Asokan; S. Patnaik |
| 單位 | |
| 出版者 | |
| 著錄名稱、卷期、頁數 | Journal of Magnetism and Magnetic Materials 456, p.1-5 |
| 摘要 | We report on the synthesis, and structural – magnetic characterizations of Mn doped Bi2Se3 towards achieving a magnetically doped topological insulator. High quality single crystals of MnxBi2−xSe3 (x = 0, 0.03, 0.05, 0.1) are grown and analysed by X-ray diffraction (XRD), Low Energy Electron Diffraction (LEED), Scanning electron microscopy (SEM), and X-ray absorption near-edge structure spectroscopy (XANES). Magnetic properties of these samples under ZFC-FC protocol and isothermal magnetization confirm ferromagnetic correlation above x = 0.03 value. XANES measurements confirm that the dopant Mn is in Mn2+ state. This is further reconfirmed to be in high spin state by fitting magnetic data with Brillouin function for J = 5/2. Both Hall and Seebeck measurements indicate a sign change of charge carriers above x = 0.03 value of Mn doping. We propose Mn doped Bi2Se3 to be a potential candidate for electromagnetic and thermoelectric device applications involving topological surface states. |
| 關鍵字 | Magnetic doping;Topological insulators |
| 語言 | 英文(美國) |
| ISSN | |
| 期刊性質 | 國外 |
| 收錄於 | SCI; |
| 產學合作 | |
| 通訊作者 | |
| 審稿制度 | 否 |
| 國別 | 美國 |
| 公開徵稿 | |
| 出版型式 | ,電子版 |
| 相關連結 | |
