File:Germanene microscopy.jpg
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| 描述 | (a) Large scale STM image (tunneling current It = 0.982 nA; sample bias Vs = −0.98 V) showing different flat terraces. (b) Profile (black line in (a)) showing step heights of ~3.2 Å. (c) Higher resolution STM topograph (It = 0.775 nA; Vs = −1.1 V) showing large protrusions arranged in a distorted hexagonal arrangement (image as acquired: no drift correction). (d) Profiles along the white continuous and dashed lines in (c) showing a ~9–10 Å separation between protrusions having heights of just ~0.2 Å. (e) Corresponding LEED pattern recorded at 50 eV primary energy (integer order spots are the strong ones at the periphery) superposed with a 8 × 8 grid. (f) Top view ball model of epitaxial few monolayer germanene on the Au(111) substrate. For clarity only one germanene layer on top of one Au(111) unreconstructed layer are displayed; the epitaxy is such that a 3√3 × 3√3 reconstructed germanene cell coincides with a 8 × 8 supercell (in blue) of Au(111) with the germanene armchair edges aligned along the dense gold rows. |
| 日期 | |
| 来源 | http://www.nature.com/articles/srep20714 |
| 作者 | María Eugenia Dávila & Guy Le Lay |
| 授权 (二次使用本文件) |
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| 当前 | 2017年3月27日 (一) 07:01 | | 926 × 1,384（288 KB） | Materialscientist | {{Information |Description=(a) Large scale STM image (tunneling current It = 0.982 nA; sample bias Vs = −0.98 V) showing different flat terraces. (b) Profile (black line in (a)) showing step heights of ~3.2 Å. (c) Higher resolution STM... |
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