Figure 1: In-plane hysteresis loops of the Co stripes, Co/Pd and Co/Pt stripe patterns with two different widths along two principal directions: the width direction (solid line and circles) and the length direction (dashed line and squares).

The results correspond to the samples (a–c) 50 and (d–f) 20 μm widths stripe patterns. An optical microscopy image of the patterned structure is shown in the insets of (b,e).