Author/Authors :
Dيaz، نويسنده , , M. and Martيnez، نويسنده , , Sandra L. and Romلn-Gutierrez، نويسنده , , E. and Redondo-Cubero، نويسنده , , A. and Muٌoz-Mلrquez، نويسنده , , M.A and van der Laan، نويسنده , , G. and Telling، نويسنده , , N.D. and Bailey، نويسنده , , P. S. Noakes، نويسنده , , T.C.Q. and Huttel، نويسنده , , Y.، نويسنده ,
Abstract :
The impact of annealing at 300 °C on the elemental composition and the atomic structure of the Co/V interface in the 2.5 إ Co/70 إ V/MgO (100) system has been investigated by medium energy ion scattering (MEIS) using 100 keV He+ ions. By combining the experimental MEIS results with simulations we show that, while the Co/V interface is abrupt for the system kept at room temperature, annealing at 300 °C induces a strong interdiffusion leading to a Co0.5V0.5 surface bcc alloy with a high degree of disorder. Additionally, the MEIS data suggest that the surface of the annealed system is slightly rumpled by ~ 0.2 إ.
Keywords :
Interdiffusion , Medium energy ion scattering (MEIS) , composition , Layer , disorder , structure , Interface
