Structure of C60/Bi crystalline films

V.A.Dudkin, A.S.Vus, E.N.Zubarev, V.E.Pukha, O.M.Vovk*

Kharkiv State Polytechnical University, 21 Frunze St., 61002 Kharkiv, Ukraine *B.Verkin Institute for Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47 Lenin Ave., 61164 Kharkiv, Ukraine

Received August 20, 1999

The structure of condensed C60 and C60/Bi films has been studied. The films were grown at the ratio of Bi atoms to fullerite molecules in the composite films not more than 1:10 on orienting substrates heated to 400-500 K. Formation conditions have been determined for perfect hcp films. The segregation of Bi atoms in the fullerite lattice has been found to take place as nanosize aggregates giving no diffraction contrast. The absence of reflections with a symmetry distinct from that of C60 lattice is explained by that Bi atoms are arranged within octahedral voids of the fullerite hcp lattice.

Previous | Contents Next