Fig. 6From: Raman Spectra and Bulk Modulus of Nanodiamond in a Size Interval of 2–5 nmDependence of the 1600 cm−1 relative Raman band shift upon pressure. Solid circles with crosses indicate a pressure increase; the ones without crosses belongs to a pressure decrease. A dash line reproduces dependences from Ref. [25] for diamond-like carbon DLC (in the Ref. [25] one marked as a-C) and glassy carbon i-CBack to article page