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Ferromagnetic islands in paramagnetic film

Sample courtesy of Yu.K. Verevkin, V.N. Petryakov, N.N. Salaschenko, Institute of Applied Physics RAS, Nizhni Novgorod, Russia.

N.I. Polushkin, Institute for Physics of Microstructures RAS, Nizhni Novgorod, Russia. A.M. Alexeev et al. Pis'ma v ZhETF 73, 214-219 (2001).

AFM and MFM images of ferromagnetic islands in paramagnetic film. This is perspective data storage medium. Both images were obtained simultaneously by two-pass method.
size: 4.0x4.1 um
SPM principle: Intermittent contact mode

Ferromagnetic islands in paramagnetic film

Magnetic image looks like a sub-micron dipole array. Dark and light areas on right image correspond to different poles.
size: 4.0x4.1 um
SPM principle: Intermittent contact mode

Magnetic domains of Yttrium Iron Garnet

Magnetic domains of garnet film

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