Micromagnetism & Microscopies Group
Laboratoire de Physique des Solides, Université Paris XI Orsay & CNRS

Magnetic Force Microscopy (MFM) imaging (left) of a flux-closure magnetization configuration in a Permalloy square element of 2 µm. The interaction between tip-induced charges and intrinsic wall charges results in an apparent domain wall curvature. Micromagnetic simulated image taking into account such perturbations (right).

Work on spin-polarized current induced vortex core switching in soft nanodisks was just published in Nature Materials and got the cover picture ! Abstract    PDF (428 kB)     arXiv:cond-mat/0702589 News and Views : Spins change their direction, by R. Cowburn

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