Topography and MFM image of a 1-μm-width nanowire (type A). (a) Topography and (b) in-remanence MFM image of nanowire A; (c)-(d) MFM-based mode images obtained along the dashed line in (b); (e) MFM images under different in situ magnetic field. The frequency shift contrast for all the MFM images is 5 Hz.
Jaafar et al. Nanoscale Research Letters 2011 6:407 doi:10.1186/1556-276X-6-407