MAGNETIC-MOMENT OF FCC FE(III) ULTRATHIN FILMS BY ULTRAFAST DEPOSITION ON CU(III)

Thermally deposited ultrathin Fe films on Cu(111) at room temperature or below have been known to grow in a multilayer mode with a low net m agnetic moment (similar to 0.5 mu(B)). In the present work we have use d pulsed laser deposition to produce isotropic fee Fe/Cu(111) films wh ich grow layer by layer with a magnetic moment of more than 2 mu(B). W e attribute the larger magnetic moment of the pulsed laser deposited f ilms to their structural perfection as seen by low energy electron dif fraction and scanning tunneling microscopy. [S0031-9007(98)05386-1].