Reply to the Comment on "The ordering of the adsorbed NH₃ molecules across the Si dimer rows on the Si(0 0 1) surface [Surf. Sci. 602 (2008) L69]"

Ja-Yong Koo, Hanchul Kim, and other researchers present their views on the interpretation of Owen and Bowler of the ordering of the adsorbed NH₃ molecules across the silicon (Si) dimer rows on the Si(001) surface are presented. The researchers stressed the significance of the ordering of the NH₃ molecules by using room temperature (RT) scanning tunneling microscopy (STM). These two researchers also disagreed with the interpretation of the STM features in the initial-stage NH₃ self-assembly on Si(001) and proposed a different interpretation. It was been well recognized that an NH₃ molecule forms a dative bond with the down Si atom of a buckled Si dimer and undergoes dissociative adsorption by liberating an hydrogen (H) atom in case identification of STM features of the individual adsorbed NH₃ molecule. It is observed that the fragments of NH₃ and H can reside on a single dimer, or on-dimer (OD) configuration.