| 1. | When the sn atom at the top layer or sublayer is replaced by ti or ru , due to the lengths of ti - o and ru - o bond is smaller than that of sn - o bond , the obvious changes of the surface relaxations are observed with respect to the undoped one , especially when ti or ru substitutes for the six - fold sn atom at the top layer
与未掺杂sno _ 2 ( 110 )表面相比,由于ti ? o或ru ? o键较sn ? o键来得短,当ti或ru取代表层或次表层sn原子后将引起表面弛豫的显著改变,尤其是表层六配位sn被取代的情形。进一步的研究表明,掺杂后将产生新的表面态,这将导致表面性质的改变。 |
