Difference between revisions of "Crystal"
From Online Dictionary of Crystallography
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What about [http://www.pnas.org/content/102/30/10451 two-dimensional crystals]? --[[User:MassimoNespolo|MassimoNespolo]] 13:59, 3 April 2009 (BST) | What about [http://www.pnas.org/content/102/30/10451 two-dimensional crystals]? --[[User:MassimoNespolo|MassimoNespolo]] 13:59, 3 April 2009 (BST) | ||
| − | First, the article points to a 2D crystal and not a crystal. Second, the name was coined by the authors of the article and they the sole responsible for their definition. Apparently this 2D crystal can only be dealt on a Si substrate and can only observed with with HREM or AFM. We are dealing here with a very special case of some atomic arrangements which can be formed in HREM. Should any mono or di-atomic surface which can be observed in EM be called 2D crystal? | + | First, the article points to a 2D crystal and not a crystal. Second, the name was coined by the authors of the article and they are the sole responsible for their definition. Apparently this 2D crystal can only be dealt with on a Si substrate and can only observed with with HREM or AFM. We are dealing here with a very special case of some atomic arrangements which can be formed in HREM. Should any mono or di-atomic surface which can be observed in EM be called 2D crystal? |
I would be reluctant to modify the definition of crystals just to include atomic layers | I would be reluctant to modify the definition of crystals just to include atomic layers | ||
Revision as of 14:05, 5 April 2009
What about two-dimensional crystals? --MassimoNespolo 13:59, 3 April 2009 (BST)
First, the article points to a 2D crystal and not a crystal. Second, the name was coined by the authors of the article and they are the sole responsible for their definition. Apparently this 2D crystal can only be dealt with on a Si substrate and can only observed with with HREM or AFM. We are dealing here with a very special case of some atomic arrangements which can be formed in HREM. Should any mono or di-atomic surface which can be observed in EM be called 2D crystal?
I would be reluctant to modify the definition of crystals just to include atomic layers