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Abstract:
We describe the growth of high quality tetrathiofulvalene
tetracyanoquinodimethane (TTF-TCNQ) organic charge-transfer thin films
which show a clear non-Fermi liquid behavior. Temperature dependent
angle resolved photoemission spectroscopy and electronic structure
calculations show that the growth of TTF-TCNQ films is accompanied by
the unfavorable presence of neutral TTF and TCNQ molecules. The quality
of the films can be controlled by tuning the evaporation temperature of
the precursor in physical vapor deposition method. (C) 2010 American
Institute of Physics. [doi:10.1063/1.3489098]