In situ near-field imaging of magnetic domain patterns in ultrathin iron films

Meyer, G.; Crecelius, T.; Bauer, A.; Mauch, I.; Kaindl, G.
August 2003
Applied Physics Letters;8/18/2003, Vol. 83 Issue 7, p1394
Academic Journal
We report on a scanning near-field optical microscope which operates in ultrahigh vacuum and allows magneto-optical Kerr-effect measurements at variable temperatures and in external magnetic fields with subwavelength lateral resolution. High magneto-optical contrast is achieved by combination with a Sagnac interferometer. In this way, magnetic domain patterns of ultrathin films of Fe/Cu(100), grown at 80 K, were studied in situ. A domain phase consisting of perpendicularly magnetized submicron wide stripes with directional order was observed. © 2003 American Institute of Physics.


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