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The compositions and Te/Bi ratio of the annealed Bi–Te thin films.
| Nominal composition | Nominal Te/Bi | Actual composition | Actual Te/Bi |
|---|---|---|---|
| Bi2Te3+x/x = 0.0 | 1.50 | Bi2Te2.99 | 1.495 |
| Bi2Te3+x/x = 0.1 | 1.55 | Bi2Te3.09 | 1.545 |
| Bi2Te3+x/x = 0.2 | 1.60 | Bi2Te3.19 | 1.595 |
| Bi2Te3+x/x = 0.8 | 1.90 | Bi2Te3.81 | 1.905 |
| Bi2Te3+x/x = 1.3 | 2.15 | Bi2Te4.31 | 2.155 |
