Carbon atoms moving at the edge of a hole in graphene

Uploaded by Francis WorldInsideOut

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From the paper Science 27 March 2009: Vol. 323. no. 5922, pp. 1705 - 1708 DOI: 10.1126/science.1166999, "Graphene at the Edge: Stability and Dynamics," Çağlar Ö. Girit, Jannik C. Meyer, Rolf Erni, Marta D. Rossell, C. Kisielowski, Li Yang, Cheol-Hwan Park, M. F. Crommie, Marvin L. Cohen, Steven G. Louie, A. Zettl

The movie shows a high-resolution transmission electron microscopy study of the structure and dynamics of graphene at the edge of a hole in a suspended, single atomic layer of graphene. The injection of electrons causes ejection of carbon atoms, leading to rearrangement of the bonds at the edges into a zigzag configuration, which represents the most stable form.

Although the physics of materials at surfaces and edges has been extensively studied, the movement of individual atoms at an isolated edge has not been directly observed in real time. With a transmission electron aberrationcorrected microscope capable of simultaneous atomic spatial resolution and 1-second temporal resolution, we produced movies of the dynamics of carbon atoms at the edge of a hole in a suspended, single atomic layer of graphene. The rearrangement of bonds and beam-induced ejection of carbon atoms are recorded as the hole grows. We investigated the mechanism of edge reconstruction and demonstrated the stability of the "zigzag" edge configuration. This study of an ideal low-dimensional interface, a hole in graphene, exhibits the complex behavior of atoms at a boundary.

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Comments

More like bees honeycomb... fucking 666 IN YOUR FACE... or I'm "losing it"...

gabigowriel

Woou,woou, hold on there to your"horses"!IF what we see is the carbon 12 isotope along with its 6 electrons,6 protons and 6neutrons(these two not seen here),then would you PLEASE,KINDLY I ASK,explain me WHY is this carbon atom isotope at the basis of all lifeforms on this planet?OR,why honey bees reproduce the EXACT fucking thing we see in this movie(hexagon)in their honeycomb?I'm not a very religious man but 666 is the NUMBER OF SATAN!IS THIS WORLD SATAN'S WORLD OR WHAT THE FUCK IS GOING ON?!?

gabigowriel

Woou,woou, hold on there to your"horses"!IF what we see is the carbon 12 isotope along with its 6 electrons,6 protons and 6neutrons(these two not seen here),then would you PLEASE,KINDLY I ASK,explain me WHY is this carbon atom isotope at the basis of all lifeforms on this planet?OR,why honey bees reproduce the EXACT fucking thing we see in this movie(hexagon)in their honeycomb?I'm not a very religious man but 666 is the NUMBER OF SATAN!IS THIS WORLD SATAN'S WORLD OR WHAT THE FUCK IS GOING ON?!?!

gabigowriel

So...what's the background made of? Are those atoms bigger or smaller or just not focused in?

Danny11Swish

This is true. The graphene is the haxagonal lattice. Which are made up of carbon atoms. Each lattice of graphine is one atom thick!

asuperpower

No, you won't be able to see electrons neutrons and protons. They vibrate at close to the speed of light, hence the sphere appearance of atoms.

Izlude Tingel

The sides are probably just an after image of superfast electrons being shared.

dandeadly3

Good god, look at taht order!!!

Laurence Bourke

Are you from salem?

shatterdmaster

Organic Pixelation

NotSenile95

She knows chemistry! it's a witch!

kawatzaki

Lol? 

shatterdmaster

Burn the witch! burn her!

kawatzaki

That said, I suppose that hydrogen and helium ions formed much earlier. Hydrogen ions are just protons which is kinda cheating, but helium-4 also formed, which is 2 protons + 2 neutrons, so that's a legit atom! These ions were formed from 3 to 20 minutes after the big bang.

ZoFreX

As the universe cooled and expanded after the big bang, the tiny fundamental particles (such as quarks) were able to bond together to form larger and larger particles. A whopping 377,000 years after the big bang, hydrogen and helium atoms were formed (interestingly, this is the period of time we see in cosmic background radiation). All of the heavier elements, such as the ones making up you, me, and most of our planet, were formed much later in the hearts of stars.

ZoFreX

By a dog from what i understand

alantecontra

I'm no expert, but if this is an electron microscope these images are not in visible light. The microscope works by sending a beam of electrons through the graphene; the electrons interact with the electromagnetic forces in the graphene and the microscope records those interactions and produces this image. Kind of the same way we can't see X-rays but we can look as pictures made by them.

pyrea17

How was the first atom created?

cvunit

If chemical bonds are caused by electrostatic forces why we can see them?

MrZergioMedina

GRAPHENE!

mynameisjamesj

FAITH won't make this.

Antonio Briceño

As that's suppose to be sarcasm, does that mean I DO live for ever?

SIC66SIC66

You won't live forever. Hope that opinion can save you. (In case you missed it, that's sarcasm.)

abobjenkins

A bit gullible then? You seem to believe in things we cant prove, that does mean you are pretty gullible though. In fact, you even believe in things we proven to be incorrect. I think you might qualify for sick in the head...

SIC66SIC66

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