Abstract
We show that sp2 carbon bonded to silicon and oxygen can withstand reversible elastic deformation at pressures of up to 33 GPa. These experiments were carried out in a diamond anvil cell. In-situ Raman spectroscopy was employed to record the reversibility of elastic deformation by measuring the movement in the D and G peaks of carbon. Above 33 GPa the material, a silicon oxycarbide, transforms into an unidentified state which is retained upon unloading down to ambient pressure. Thermodynamical analysis suggests that the material could have transformed into a crystalline state at these ultrahigh pressures, driven by mechanical work.
| Original language | English (US) |
|---|---|
| Article number | 141901 |
| Journal | Applied Physics Letters |
| Volume | 105 |
| Issue number | 14 |
| DOIs | |
| State | Published - Oct 6 2014 |
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ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)
Cite this
Reversible elastic deformation of functionalized sp2 carbon at pressures of up to 33 GPa. / Soignard, Emmanuel; Hochheimer, Hans D.; Yarger, Jeffery; Raj, Rishi.
In: Applied Physics Letters, Vol. 105, No. 14, 141901, 06.10.2014.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Reversible elastic deformation of functionalized sp2 carbon at pressures of up to 33 GPa
AU - Soignard, Emmanuel
AU - Hochheimer, Hans D.
AU - Yarger, Jeffery
AU - Raj, Rishi
PY - 2014/10/6
Y1 - 2014/10/6
N2 - We show that sp2 carbon bonded to silicon and oxygen can withstand reversible elastic deformation at pressures of up to 33 GPa. These experiments were carried out in a diamond anvil cell. In-situ Raman spectroscopy was employed to record the reversibility of elastic deformation by measuring the movement in the D and G peaks of carbon. Above 33 GPa the material, a silicon oxycarbide, transforms into an unidentified state which is retained upon unloading down to ambient pressure. Thermodynamical analysis suggests that the material could have transformed into a crystalline state at these ultrahigh pressures, driven by mechanical work.
AB - We show that sp2 carbon bonded to silicon and oxygen can withstand reversible elastic deformation at pressures of up to 33 GPa. These experiments were carried out in a diamond anvil cell. In-situ Raman spectroscopy was employed to record the reversibility of elastic deformation by measuring the movement in the D and G peaks of carbon. Above 33 GPa the material, a silicon oxycarbide, transforms into an unidentified state which is retained upon unloading down to ambient pressure. Thermodynamical analysis suggests that the material could have transformed into a crystalline state at these ultrahigh pressures, driven by mechanical work.
UR - http://www.scopus.com/inward/record.url?scp=84907893134&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84907893134&partnerID=8YFLogxK
U2 - 10.1063/1.4897644
DO - 10.1063/1.4897644
M3 - Article
AN - SCOPUS:84907893134
VL - 105
JO - Applied Physics Letters
JF - Applied Physics Letters
SN - 0003-6951
IS - 14
M1 - 141901
ER -