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Adsorption of trimethylphosphine (TMP) on a Si(111)-(7x7) surface was studied using scanning tunneling microscopy (STM), high-resolution electron energy loss spectroscopy (HREELS), and theoretical calculations. It was found from STM and HREELS that most of the TMP molecules are adsorbed molecularly on center adatom sites at room temperature. A semi-empirical calculation (AM1 method) verified that...
Adsorption of trimethylphosphine (TMP) on a Si(111)-(7 × 7) surface has been studied using a scanning tunneling microscope (STM). We find that most of the TMP molecules are adsorbed preferably on center adatom sites at the surface. It is observed that the TMP molecule on a corner adatom is moved to a center adatom site at RT. TMP is more stable on the center adatom sites than on the corner adatom...
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