No abstract

No abstract

We have investigated the magnetic response of ultrathin paramagnetic Co/Cu(001) films in an applied field using the magneto-optic Kerr effect. We find that the paramagnetic susceptibility y increases sharply upon Co deposition within a narrow thickness range close to the critical thickness at which the onset of ferromagnetism occurs. %'e attribute the observed behavior to a geometrical, or percolation phase transition, since the corresponding critical exponent y = -,', =2.39 agrees well with the experimentally determined value of 2.40+0.07.

Articles you may be interested inStudy of in-plane magnetic anisotropy of ultrathin epitaxial Fe films grown on vicinal Mo(110) surface J. Appl. Phys. 95, 7312 (2004); 10.1063/1.1652411 Magnetic anisotropy engineering in in-plane magnetized ultrathin ferromagnetic films (invited) Influence of surface atomic steps on inplane magnetic anisotropy of ultrathin Fe films on W(001)

No abstract