Ferromagnetic resonance force microscopy on microscopic cobalt single layer films
نویسندگان
چکیده
We report mechanical detection of ferromagnetic resonance ~FMR! signals from microscopic Co single layer thin films using a magnetic resonance force microscope ~MRFM!. Variations in the magnetic anisotropy field and the inhomogeneity of were clearly observed in the FMR spectra of microscopic Co thin films 500 and 1000 Å thick and ;403200 mm in lateral extent. This demonstrates the important potential that MRFM detection of FMR holds for microscopic characterization of spatial distribution of magnetic properties in magnetic layered materials and devices. © 1998 American Institute of Physics. @S0003-6951~98!01640-4#
منابع مشابه
Ferromagnetic resonance imaging of Co films using magnetic resonance force microscopy
Lateral one-dimensional imaging of cobalt ~Co! films by means of microscopic ferromagnetic resonance ~FMR! detected using the magnetic resonance force microscope ~MRFM! is demonstrated. A novel approach involving scanning a localized magnetic probe is shown to enable FMR imaging in spite of the broad resonance linewidth. We introduce a spatially selective local field by means of a small, magnet...
متن کاملImaging mechanisms of force detected FMR microscopy
We demonstrate spatial resolution of ferromagnetic resonance in a microscopic sample of YIG using ferromagnetic resonance force microscopy ~FMRFM!. Measurements were performed on a small single crystal YIG film grown on a GGG substrate, roughly rectangular in shape 20 mm3;150 mm and 3 mm thick. The perpendicular and parallel force geometries of FMRFM, in conjunction with an external bias field ...
متن کاملMFM studies of interlayer exchange coupling in Co/Ru/Co films: Effect of Ru layer thickness.
Antiferromagnetically coupled magnetic thin films are promising candidates for the design of new magnetic storage and logic devices. The ability to control the interlayer thickness, therefore the magnetic reversal response, of exchange-coupled magnetic layers is of paramount importance in nanotechnology, especially in magnetic sensing element design and applications. In this work, magnetic forc...
متن کاملMagnetic force microscopy using fabricated cobalt-coated carbon nanotubes probes
Magnetic force microscope ( MFM ) is a powerful technique for mapping the magnetic force gradient above the sample surface. Herein, single-wall carbon nanotubes (SWCNT) were used to fabricate MFM probe by dielectrophoresis method which is a reproducible and cost-effective technique. The effect of induced voltage on the deposition manner of carbon nanotubes (CNT) on the atomic force microscope (...
متن کاملSpin-polarized low energy electron microscopy of ferromagnetic layers
Spin-polarized low energy electron microscopy (SPLEEM) is a powerful technique for the study of the magnetic domain structure of ferromagnetic surfaces, thin films and ferromagnetic / nonferromagnetic thin film systems. The unique feature of this instrument is the combination of magnetic with topographic imaging on an atomic depth scale level, and with structural information via low energy elec...
متن کامل