|
|
[求助]
关于材料表真的一些问题,求大侠解救啊
1. What are the lateral resolution for AFM,STM and SEM and HRTEM?
2. Please give a brief explanation of the following terms: spherical aberration, chromatic aberration and
astigmatism.
4. For electron diffraction pattern in fig.1, if we index r1 as (212),r2 as (1-1 1),please index r3,and calculate electron beam incident direction: <uvw>.
5. Draw a simple Ewald sphere/ZOLZ diagram for the Bragg (s=0) two beam orientation. Define k0, k, and g, and show analytically that this construction is equivalent to the Bragg law for diffraction.
7. Present drawings of the zero and first levels of the reciprocal lattice for a pri mitive cubic real lattice looking
down the c axis. Show and index a few lattice points in all four quadrants. Show the unit cell for the reciprocal
lattice.
8. Calculate the structure factor, Fhkl, for a base-centered unit cell as shown in fig.2, which has two atoms of the same kind and located at 000 and ½½0.![关于材料表真的一些问题,求大侠解救啊]()
未命名.GIF |
» 本帖附件资源列表
-
欢迎监督和反馈:小木虫仅提供交流平台,不对该内容负责。
本内容由用户自主发布,如果其内容涉及到知识产权问题,其责任在于用户本人,如对版权有异议,请联系邮箱:xiaomuchong@tal.com
- 附件 1 : 未命名.GIF
2013-06-17 09:28:34, 4.12 K
- 附件 2 : 未命名2.GIF
2013-06-17 09:31:12, 5 K
» 猜你喜欢
|