Abstract
We report herein ab initio molecular dynamics simulations of graphite under shock compression in conjunction with the multiscale shock technique. Our simulations reveal that a novel short-lived layered diamond intermediate is formed within a few hundred of femtoseconds upon shock loading at a shock velocity of 12km∕s (longitudinal stress>130GPa), followed by formation of cubic diamond. The layered diamond state differs from the experimentally observed hexagonal diamond intermediate found at lower pressures and previous hydrostatic calculations in that a rapid buckling of the graphitic planes produces a mixture of hexagonal and cubic diamond (layered diamond). Direct calculation of the x-ray absorption spectra in our simulations reveals that the electronic structure of the final state closely resembles that of compressed cubic diamond.
References
35
Referenced
89
10.1126/science.1089713
/ Science (2003)10.1016/0008-6223(96)00170-4
/ Carbon (1996)10.1038/349317a0
/ Nature (London) (1991)10.1063/1.350633
/ J. Appl. Phys. (1992)10.1103/PhysRevB.22.4744
/ Phys. Rev. B (1980)10.1038/nmat1863
/ Nat. Mater. (2007)10.1016/S0009-2614(97)01358-4
/ Chem. Phys. Lett. (1998)10.1063/1.1149662
/ Rev. Sci. Instrum. (1999)10.1063/1.1556197
/ J. Appl. Phys. (2003)10.1103/PhysRevB.69.100101
/ Phys. Rev. B (2004)10.1103/PhysRevLett.94.145701
/ Phys. Rev. Lett. (2005)10.1103/PhysRevB.74.064115
/ Phys. Rev. B (2006)10.1073/pnas.0510489103
/ Proc. Natl. Acad. Sci. U.S.A. (2006)10.1103/PhysRevLett.74.4015
/ Phys. Rev. Lett. (1995)10.1103/PhysRevB.72.214109
/ Phys. Rev. B (2005)10.1126/science.1070375
/ Science (2002)10.1103/PhysRevB.66.220102
/ Phys. Rev. B (2002)10.1103/PhysRevLett.90.235503
/ Phys. Rev. Lett. (2003){'volume-title': 'Chemistry at Extreme Conditions', 'year': '2005', 'author': 'Manaa', 'key': '2023073023374024400_c18'}
/ Chemistry at Extreme Conditions by Manaa (2005)10.1103/PhysRevE.74.056706
/ Phys. Rev. E (2006)10.1038/nphys806
/ Nature Physics (2008){'key': '2023073023374024400_c21'}
10.1002/cphc.200500059
/ ChemPhysChem (2005)10.1103/PhysRevLett.55.2471
/ Phys. Rev. Lett. (1985)10.1103/PhysRevLett.77.3865
/ Phys. Rev. Lett. (1996)10.1103/PhysRevB.43.1993
/ Phys. Rev. B (1991)10.1039/b615522g
/ Phys. Chem. Chem. Phys. (2007){'key': '2023073023374024400_c27'}
10.1063/1.1677527
/ J. Chem. Phys. (1972)10.1103/PhysRevB.61.8734
/ Phys. Rev. B (2000)10.1103/PhysRevLett.61.2879
/ Phys. Rev. Lett. (1988)10.1080/002689798169195
/ Mol. Phys. (1998){'volume-title': 'X-Ray Diffraction', 'year': '1990', 'key': '2023073023374024400_c32'}
/ X-Ray Diffraction (1990){'key': '2023073023374024400_c33', 'volume-title': 'International Table for X-Ray Crystallography', 'author': 'Ibers', 'year': '1989', 'edition': '3rd ed.'}
/ International Table for X-Ray Crystallography by Ibers (1989)10.1063/1.117789
/ Appl. Phys. Lett. (1996)
Dates
Type | When |
---|---|
Created | 17 years, 3 months ago (May 8, 2008, 6:44 p.m.) |
Deposited | 2 years ago (July 30, 2023, 7:37 p.m.) |
Indexed | 3 weeks, 1 day ago (July 30, 2025, 6:51 a.m.) |
Issued | 17 years, 3 months ago (May 8, 2008) |
Published | 17 years, 3 months ago (May 8, 2008) |
Published Online | 17 years, 3 months ago (May 8, 2008) |
Published Print | 17 years, 3 months ago (May 14, 2008) |
@article{Mundy_2008, title={Ultrafast transformation of graphite to diamond: An ab initio study of graphite under shock compression}, volume={128}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.2913201}, DOI={10.1063/1.2913201}, number={18}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={Mundy, Christopher J. and Curioni, Alessandro and Goldman, Nir and Will Kuo, I.-F. and Reed, Evan J. and Fried, Laurence E. and Ianuzzi, Marcella}, year={2008}, month=may }