This image shows the precise arrangement of atoms that form a bridge between two gold crystals. Until yesterday, you would not have been able to see that image — at least, not with such clarity and color. It's the product one of the world's most powerful transmission electron microscopes, installed yesterday at UC Berkeley, which can deliver crisp images of objects that are less than half the diameter of a hydrogen atom. Want to see the microscope?
Microscopy nerds and beam geeks, rejoice! It's TEAM, the coolest damn microscope you'll ever see. A beam of energy pulses through it and, with new error-correcting tech, is able to reduce image noise normally associated with electron microscopes that measure atomic structures. Images courtesy of DOE's National Center for Electron Microscopy.
Debut of TEAM 0.5 [Eurekalert]










Comments
My favorite aspect of things like this isthat the device is built only to be functional, not designed, or to look neat for any public. It's a heap of (highly organized, I'm sure) cables and wires in a black metal frame - and it's just waiting to do some awesome science. I can't wait for more pictures.
Wow, I love this stuff. Thanks IO9!
but will it blend?
where do you put the sample?
Ah, interesting... interesting...
I propose that we use this beam to change SOMETHING into NOTHING, then back again.
The molecules would remain suspended in the beam, and when it turns off, all the molecules fall back into place, and VIOLA!
Hey! How did you guys get a picture of my stereo/computer?
That is one sexy microscope. Microscope, I want you to do me, RIGHT HERE.
@Transuranic: I know! I'm glad I'm not the only one who thought that.
What colours is it available in? Does it include the flash, or is that extra?
A giant inhaler + wires = the greatest micro-scope yet!
good god look at that huge 60 something position terminal strip just dangling there!
How much of a hurry were they in?? Cable assembly and wire drawings are a bitch, but man, it is such a bitch to fix things that are put together like that and very easy to break them.
We're just seeing the crystal lattice here, right, those dots aren't individual atoms... right??
@nutbastard: From the article, it sounds like they're able to focus the electron beam precisely in a plane, so we are seeing a slice through one plane of the crystal lattice of this gold nanojunction with atomic precision. You can kind of see that at the edges, the spots get smaller - I think that's because the surface atoms don't line up with the crystal packing in the center of the junction - they're shifted above or below the plane of focus.
What I think is cool is this: "From each exposure to the next, individual gold atoms could be seen changing positions." I'd like to see the animation of the gold atoms moving around.
@jamesi-kins:
so we're seeing a Section in the ASME sense, or a surface? Oy i am not well versed in atomic scale stuff. But i guess in this specific case, almost no one is (considering these images couldn't have existed until they built this thing!)
But yes, watching individual atoms change positions, for some reason, seems almost... pornographic... in the sense that yer seeing something normally locked away in Gods Nightstand Drawer.
@nutbastard: I thought the picture was weird too. How could those dots bond anything? Shouldn't there be millions of them, at any size smallness?
I don't savvy "Section in the ASME sense", but it's definitely not a surface image - it's an image of a section of a 3-d structure, where the 3-d structure looks something like two cones with their tips stuck together. I think the structure is a break junction [en.wikipedia.org] , which is a tiny point of contact between two sections of wire that have been drawn apart until they are very nearly separated. The formation of the junction can be controlled very precisely by using a piezo controller and monitoring the conductivity of the junction, so one can reproducibly leave a tiny neck of material - here it seems to be about 4 nanometers across. Gold structures this size are stable - you don't need millions of gold atoms for them to stick together.
This thing still uses electrons, right? I wonder what the limit is for being able to see the very small? We're getting to the point where seeing the very small is going to leave us with more empty space than anything else. After all, most of the univese is empty.
Comment on this post
Reply by EmailLogin with your username and password below. Or comment on this post via email.
Forgot your username or password? New User?