WEEK+OF+DECEMBER+7TH

=**WEEK OF DECEMBER 7TH**=

Becky and I talked about the picture I found(above) today. And we finally concluded that it might be a gold image but different cubic system What we uually use is gold(111) but even though it is a same gold pieces, depending on how it is sliced, it's shpae might be different. I will put how gold(111) usually looks like.

This image was taken by Becky Au(111) is commonly used one because it is easy to see and cheap. I will put some information about cubic system tomm.


 * 12-07-09**

Today I tried to scan dibenzo pentacene but I had a problem with the tip.. So I could not get images at all I tried with 1na firstly but it didnt seem approaching so I tried with 2na again and get it back to 0.02na. The images were not good so moved areas and still not good.. Hopefully I can get some images on wednesday.


 * 12-08-09**

So..these are different cubic system. What we usually use for gold is Au(111) and depending on how it is sliced, its image can be different too. The 12-09-09's image is probably not taken with easy scan STM but pressured STM?( I am not sure how we call it..) which has less vibration and air.

I went to the lab today and tried to scan dibenzo pentacene. I had got some images but not much better than this.. this image is still not good.. but others were worse.. At the beginning I had a trouble with approacing because I did not know that I cliped on the mica part but not on gold so there was no currency obviously. So I fixed it and tried to approach it again and finally got a image which is the picture above. And I tried to move some areas and it did not make any difference. I think it is because I had a bad tip because as can be seen above the picture's topography, there is a hill which means tip is bad a lot of times.(Becky told me) So hopefully I can get a good image next time when i try with different tip.
 * 12-09-09**