MAGNETOTRANSPORT IN MICROSTRIPES PATTERNED IN ULTRATHIN COBALT FILMS

The magnetotransport properties are an attractive alternative to stand ard observation techniques for the characterization of the magnetizati on reversal in structures with reduced lateral dimensions (stripes). I n particular, magnetic films exhibit the so-called anomalous Hall effe ct which is very sensitive to the local magnetic domain structures. We began to work with the model system Co/Au(111) grown on silicon dioxi de. We present here a new method for microstructuring magnetic multila yers, that avoid the use of technological processes on the multilayers . Preliminary magnetotransport results in 50 mu m wide stripes are pre sented and discussed.