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lab:research:graphyne-01 [2014/12/17 15:35] rawoon |
lab:research:graphyne-01 [2015/12/24 00:34] ykkwon |
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==== Thermal expansion of graphyne ==== | ==== Thermal expansion of graphyne ==== | ||
- | we have investigated the thermal expansion behaviors of three different types (α, β, and γ) of graphyne | + | We have investigated the thermal expansion behaviors of three different types (α, β, and γ) of graphyne |
which is a two-dimensional carbon allotrope composed of //sp// and //sp<sup>2</sup>// bonds. | which is a two-dimensional carbon allotrope composed of //sp// and //sp<sup>2</sup>// bonds. | ||
We have found that all three types of graphyne exhibit negative in-plane thermal expansion. | We have found that all three types of graphyne exhibit negative in-plane thermal expansion. | ||
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graphyne that may fill empty spaces resulting in area reduction. | graphyne that may fill empty spaces resulting in area reduction. | ||
These modes are attributed to the libration of "rigid units" composed of triple bonds | These modes are attributed to the libration of "rigid units" composed of triple bonds | ||
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