Author/Authors :
Lian، نويسنده , , J.C. and Finazzi، نويسنده , , E. and Di Valentin، نويسنده , , C. and Risse، نويسنده , , T. and Gao، نويسنده , , H.-J. and Pacchioni، نويسنده , , G. and Freund، نويسنده , , H.-J.، نويسنده ,
Abstract :
In this Letter the interaction of Li atoms with terrace sites of MgO(0 0 1) surfaces is characterized by combining EPR spectroscopy with theoretical calculations. The Li atoms adsorbed to MgO terrace sites show a reduction of the isotropic hyperfine coupling constant by approximately 50% with respect to Li atoms in the gas phase. In combination with theoretical calculations it can be shown that this reduction of the hyperfine coupling constant is not due to a charge transfer between Li and MgO but can be understood by a polarization of the Li atoms which are essentially neutral.
