Autor: |
Gosvami, N. N., Sinha, S. K., O Shea, S. J. |
Jazyk: |
angličtina |
Rok vydání: |
2008 |
Předmět: |
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Zdroj: |
PHYS REV LETT, 100 (7), Article 076101. (2008) |
Popis: |
We study squalane and heptamethylnonane (HMN) confined between a conducting atomic force microscope tip and a graphite surface. Solvation layering occurs for both liquids but marked differences in the squeeze out mechanics are observed for ordered or disordered monolayers. The squalane monolayer at 25 degrees C is an ordered solid, as verified by direct imaging, and the squeeze out can be modeled using elastic continuum mechanics. HMN is in a disordered state at 25 degrees C and cannot be modeled as a single elastic asperity even in solid-solid contact because HMN liquid is trapped in the contact zone. |
Databáze: |
OpenAIRE |
Externí odkaz: |
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