Left to right: LEED images taken at 120 eV for clean, well ordered Cu(311), 1 ML Co/Cu(311), 3 ML Co/Cu(311), and 5 ML Co/Cu(311). It is clear that the growth is pseudomorphic as no change is observed in the spot pattern.
Evolution of the loops as a function of Co thickness with the field applied along the direction.
Susceptibility, , as a function of the reduced Co thickness, . At the critical thickness, , the magnetic susceptibility becomes infinite as long range magnetic order is established.
Log-log plot of the data shown in Fig. 3. The gradient is .
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