Concerning the structure of a high pressure phase in californium metal

Using a model based on a hexagonal lattice and on a structure reported for the high pressure distorted f.c.c. phase of praseodymium a structure has been suggested for one of the high pressure phases of californium metal that is labeled 'distorted f.c.c.'. In the present work an alternative solution based on a triclinic cell is described. The application of either structure model to the reported d spacings of the high pressure phase of californium under consideration is discussed. (orig.)