Pressure dependence of lattice constant of diamond: isotopic effects
Fujihisa H., Sidorov V.A., Takemura К., Kanda H., Stishov S.M.
The pressure dependence of lattice constants of the 13 С enriched diamond and the diamond of natural isotopic composition have been studied by using x-ray synchrotron radiation and imaging plate technique. The compression curves reveal features which indicate the inversion of the isotope effect at high pressure. PACS 35.10.Bg, 64.30.+t, 62.50.+p