Ferromagnetic resonance force microscopy studies of arrays of micron size permalloy dots
نویسندگان
چکیده
T. Mewes,1,2,* J. Kim,1 D. V. Pelekhov,1 G. N. Kakazei,1,3 P. E. Wigen,1 S. Batra,4 and P. C. Hammel1,† 1Department of Physics, Ohio State University, 191 West Woodruff Avenue, Columbus, Ohio 43210, USA 2Center for Materials for Information Technology and Department of Physics & Astronomy,University of Alabama, Box 870209, Tuscaloosa, Alabama 35487, USA 3Institute of Magnetism National Academy of Sciences of Ukraine, 36b Vernadskogo Boulevard, 03142 Kiev, Ukraine 4Seagate Research, 1251 Waterfront Place, Pittsburgh, Pennsylvania 15222, USA Received 7 June 2006; revised manuscript received 16 August 2006; published 25 October 2006
منابع مشابه
Magnetic vortex core observation in circular dots of permalloy
Spin structures of nanoscale magnetic dots are the subject of increasing scientific effort, as the confinement of spins imposed by the geometrical restrictions makes these structures comparable to some internal characteristic length scales of the magnet. For a vortex (a ferromagnetic dot with a curling magnetic structure), a spot of perpendicular magnetization has been theoretically predicted t...
متن کاملFinite size effects in patterned magnetic permalloy films
Electron beam lithography has been used to prepare 250-Å-thick square-shaped permalloy dots whose width and separation are in the range between 1 and 4 mm. The static and dynamic magnetic properties of these structures have been investigated by complementary techniques such as magneto-optic Kerr effect ~MOKE!, magnetic force microscopy ~MFM!, and Brillouin light scattering ~BLS!. Longitudinal M...
متن کاملQuantitative magnetic force microscopy on permalloy dots using an iron filled carbon nanotube probe.
An iron filled carbon nanotube (FeCNT), a 10-40 nm ferromagnetic nanowire enclosed in a protective carbon tube, is an attractive candidate for a magnetic force microscopy (MFM) probe as it provides a mechanically and chemically robust, nanoscale probe. We demonstrate the probe's capabilities with images of the magnetic field gradients close to the surface of a Py dot in both the multi-domain an...
متن کاملAnalysis of ferromagnetic resonance response of square arrays of permalloy nanodots
We present a detailed comparison between the results of ferromagnetic resonance (FMR) measurements on a square array of permalloy nanodots and a numerical simulation based on the eigenvalues of the linearized Landau-Lifshitz equation. Of particular importance is the implementation of a recently developed technique for numerically calculating the absorption spectrum from the associated eigenvect...
متن کاملOrdered arrays of multiferroic epitaxial nanostructures
UNLABELLED Epitaxial heterostructures combining ferroelectric (FE) and ferromagnetic (FiM) oxides are a possible route to explore coupling mechanisms between the two independent order parameters, polarization and magnetization of the component phases. We report on the fabrication and properties of arrays of hybrid epitaxial nanostructures of FiM NiFe(2)O(4) (NFO) and FE PbZr(0.52)Ti(0.48)O(3) o...
متن کامل