Properties of diamond under hydrostatic pressures up to 140 GPa
Source abstract
Abstract
Diamond is the archetypal covalent material. Each atom in an sp(3) configuration is bonded to four nearest neighbours. Because of its remarkable properties, diamond has been extensively studied. And yet our knowledge of the properties of diamond under very high pressure is still incomplete. Although diamond is known to be the preferred allotrope of carbon at high pressure, the possibility of producing under pressure high-density polymorphs of diamond, including metallic forms, has been discussed. Structural changes have already been reported in diamond under non-hydrostatic pressures around 150 GPa and large deformation. However, measurements of the properties of diamond under hydrostatic pressure have been limited to below 40 GPa. Here, we report accurate measurements of the volume and of the optical phonon frequency of diamond under hydrostatic pressure up to 140 GPa. We show that diamond is more compressible than currently expected. By combining the volume and the frequency pressure shifts, we deduce that diamond remains very stable under pressure: it is a Gruneisen solid up to at least 140 GPa, and the covalent bond is even slightly strengthened under pressure. Finally, the optical phonon frequency versus pressure is calibrated here to be used as a pressure gauge for diamond anvil cell studies in the multi-megabar range.
Source: europepmc · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: High-pressure geophysics and materials · Diamond and Carbon-based Materials Research · Force Microscopy Techniques and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (25)
Show source-provided references
1. Field, J.E. The Properties of Natural and Synthetic Diamond (Academic, London, 1997).
2. Fahy, S. & Louie, S.G. High pressure structural and electronic properties of carbon. Phys. Rev. B 36, 3373–3385 (1987).10.1103/PhysRevB.36.3373 ↗
3. Clark, S.J., Ackland, C.J. & Crain, J. Theoretical stability limit of diamond at ultrahigh pressure. Phys. Rev. B 52, 15035–15038 (1995).10.1103/PhysRevB.52.15035 ↗
4. Serra, S., Benedek, G., Facchinetti, M. & Miglio, L. Possible high pressure phase of diamond. Phys. Rev. B 57, 5661–5667 (1998).10.1103/PhysRevB.57.5661 ↗
5. Mao, H.K. & Hemley, R.J. Optical transitions in diamond at ultrahigh pressures. Nature 351, 721–724 (1991).10.1038/351721a0 ↗
6. Hanfland, M., Syassen, K., Fahy, S., Louie, S.G. & Cohen, M.L. Pressure dependence of the first order Raman mode in diamond. Phys. Rev. B 31, 6896–6899 (1985).10.1103/PhysRevB.31.6896 ↗
7. Aleksandrov, I.V. et al. Diamond and cubic boron nitride under high pressure: Raman scattering, equation of state and high pressure scale. High Press. Res. 1, 333–336 (1989).10.1080/08957958908202491 ↗
8. Gillet, Ph., Fiquet, G., Daniel, I., Reynard, B. & Hanfland, M. Equation of state of 12C and 13C diamond. Phys. Rev. B 60, 14660–14664 (1999).10.1103/PhysRevB.60.14660 ↗
9. LeToullec, R., Pinceaux, J.P. & Loubeyre, P. The membrane diamond anvil cell: A new device for generating continuous pressure and temperature variations. High Press. Res. 1, 77 (1988).10.1080/08957958808202482 ↗
10. Mao, H.K., Xu, J. & Bell, P.M. Calibration of the ruby pressure gauge to 800 Kbar under quasihydrostatic conditions. J. Geophys. Res. B 91, 4673–4676 (1986).10.1029/JB091iB05p04673 ↗
11. Zha, C.S., Mao, H.K. & Hemley, R.J. Elasticity of MgO and a primary pressure scale to 55 GPa. Proc. Natl Acad. Sci. USA 97, 13494–13499 (2000).10.1073/pnas.240466697 ↗
12. Datchi, F., LeToullec, R. & Loubeyre, P. Improved calibration of the SrB4O7:SM2+ optical pressure gauge: advantages at very high pressures and high temperatures. J. Appl. Phys. 81, 3333–3339 (1997).10.1063/1.365025 ↗
13. Loubeyre, P. et al. X-ray diffraction and equation of state of hydrogen at megabar pressures. Nature 383, 702–704 (1996).10.1038/383702a0 ↗
14. Nieto Sanz, D., Loubeyre, P. & Mezouar, M. Equation of state and pressure induced amorphization of β-boron from X-ray measurements up to 100 GPa. Phys. Rev. Lett. 89, 245–501 (2002).
15. Vinet, P., Smith, J.R., Ferrante, J. & Rose, J.H. Temperature effects on the universal equation of state of solids. Phys. Rev. B 35, 1945–1953 (1987).10.1103/PhysRevB.35.1945 ↗
16. Cohen, R.E., Gulseren, O. & Hemley, R.J. Accuracy of equation of state formulations. Am. Mineral. 85, 338–344 (2000).10.2138/am-2000-2-312 ↗
17. Yamanaka, T., Morimoto, S. & Kanda, H. Influence of the isotope ratio on the lattice constant of diamond. Phys. Rev. B 49, 9341–9343 (1994).10.1103/PhysRevB.49.9341 ↗
18. McSkimin, H.T. & Andreatch, P. Elastic moduli of diamond as a function of pressure and temperature. J. Appl. Phys. 43, 2944–2948 (1972).10.1063/1.1661636 ↗
19. Vogelgesang, R., Ramdas, A.K., Rodriguez, S., Grimsditch, M. & Anthony, T.R. Brillouin and Raman scattering in natural and isotopically controlled diamond. Phys. Rev. B 54, 3989–3999 (1996).10.1103/PhysRevB.54.3989 ↗
20. Nielsen, O.H. Optical phonons and elasticity of diamond at megabar stresses. Phys. Rev. B 34, 5808–5819 (1986).10.1103/PhysRevB.34.5808 ↗
21. Pavone, P. et al. Ab-initio lattice dynamics of diamond. Phys. Rev. B 48, 3156–3163 (1993).10.1103/PhysRevB.48.3156 ↗
22. Poirier, J.P. Introduction to the Physics of the Earth's Interior (Cambridge Univ. Press, Cambridge, 1991).
23. Boppart, H., van Straaten, J. & Silvera, I.F. Raman spectra of diamond at high pressures. Phys. Rev. B 32, 1423–1425 (1985).10.1103/PhysRevB.32.1423 ↗
24. Gogotsi, Y.G., Kailer, A. & Nickel, K.G. Transformation of diamond to graphite. Nature 401, 663–664 (1999).10.1038/44323 ↗
25. Mailhiot, C. & McMahan, A.K. Atmospheric pressure stability of energetic phases of carbon. Phys. Rev. B 44, 11578–11591 (1991).10.1103/PhysRevB.44.11578 ↗