| Title | Modulation of Surface Charge Transfer Through Competing Long-Range Repulsive Versus Short-Range Attractive Interactions |
| Authors | J. Fraxedas, S. García-Gil, S. Monturet, N. Lorente, I. Fernández-Torrente, K.J. Franke, J.I. Pascual, A. Vollmer, R.-P. Blum, N. Koch, P. Ordejon |
| Journal | Journal of Physical Chemistry C |
| Vol. 115, 8 2011, pg. 18640 |
| Abstract | We report a combined experimental and theoretical study of the modulation of surface charge transfer on the TTF [tetrathiafulvalene]/Au(111) interface as a function of coverage in the submonolayer regime by combining low-temperature scanning tunneling microscopy, high resolution photoemission spectroscopy using synchrotron radiation and density functional theory (DFT) calculations. The modulation is induced by the competition between long-range repulsive Coulombic interactions and short-range attractive hydrogen-bonding interactions. The system shows the characteristic pattern evolution, from monomeric stripes at low coverages to two-dimensional islands, with the formation of labyrinths in the crossover. |
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