Author/Authors :
Majkova، نويسنده , , E. and Luby، نويسنده , , S. and Jergel، نويسنده , , M. and Anopchenko، نويسنده , , A. and Chushkin، نويسنده , , Y. and Barucca، نويسنده , , G. and Di Cristoforo، نويسنده , , A. and Mengucci، نويسنده , , P. and DʹAnna، نويسنده , , E. and Luches، نويسنده , , A. and Martino، نويسنده , , M. and Lee، نويسنده , , Hsin-Yi، نويسنده ,
Abstract :
The interface reactions in (1 nm Fe/x nm W) and (2 nm Fe/x nm W) multilayers (x=1, 2, 5 and 7) with 5 or 10 periods in as-deposited state and under KrF laser irradiation with fluences, F=0.05–0.25 J cm−2 and 1 or 10 pulses were studied by X-ray diffraction (XRD), grazing incidence (GI) XRD, X-ray reflectivity, GI X-ray diffuse scattering and cross-section transmission electron microscopy (XTEM). Structurally coherent layers along the [110] direction with bcc symmetry were found in as-deposited and irradiated samples. This coherency is affected by the lateral waviness of the interfaces. The layered structure persists up to F=0.25 J cm−2 and 10 pulses. Under the laser treatment, both the interface roughness and mixing increase with increasing deposited energy and promoted bcc W grain growth is observed.
Keywords :
Magnetic multilayers , Interface roughness , Intermixing , Fe/W multilayers , excimer laser
