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Absence of the rotator phase and evolution of dynamical motions in cluster monolayers
Date Issued
08-03-2003
Author(s)
Mukhopadhyay, R.
Mitra, S.
Indian Institute of Technology, Madras
Tsukushi, I.
Ikeda, S.
Abstract
The dynamical behavior of the alkyl chains in monolayer protected metal cluster superlattice systems was studied by the quasielastic neutron scattering technique. It was established that monolayers in long chain thiolate protected clusters such as Au-ODT are rotationally frozen at room temperature and dynamics evolve upon increase in temperature. The absence of the rotator phase was found to be in a wide time scale of 10-9-10-12s. Monolayers were found to be dynamically frozen on the superlattice system Ag-ODT. This was also checked using two different spectrometers.
Volume
118