A general approach allowing to find the analytical expressions for
equilibrium magnetic structures in small and flat magnetic nano-sized cylinders
of arbitrary shape made of soft magnetic material is presented. The resulting
magnetization distributions are two-dimensional topological solitons and have a
non-zero topological charge. The approach is illustrated here on an example of
a thin rectangular particle.Comment: 3 pages, 2 figures, RevTex, for SCM2001 (Seeheim, Germany, 2001),
  satellite of JEMS'01 conferenc

Akanuma

Hansen

Kato

Kodama

Sacco

Shin

Tabata

Tamaura

Tsuji

phys stat sol (a)

English

arXiv

59Co nuclear magnetic resonance (NMR) was employed to study the growth of ultrathin Co/Fe and Co/Cu layers on a Pd(111) single crystal on an atomic scale. Co starts to grow in a dense-packed fcc(111) structure on Pd(111), but for thicker layers a mixture of fcc(111) and hcp(0001) evolves. The top Co interface is found to be almost perfect. On the other hand, the Pd/Co interface is far from ideal. Co intermixes with the Pd and forms a CoPd interface alloy, which has consequences for the interpretation of the strong perpendicular magnetic anisotropy (PMA) observed in Pd(111)/Co/Pd

Kohlhepp, J.T.

Strukers, G.J.

Wieldraaijer, H.

Jonge, de, W.J.M.

NARCIS 

Crystalline and Interfacial Structure of Ultrathin Co Layers Grown on Pd(111): A 59Co NMR Study

Coisson, M.

Tiberto, P.

Vinai, F.

Archivio istituzionale della ricerca - INRIM

Magnetoimpedance Effect in Nanocrystalline Fe86Zr7B6Cu1 Melt-Spun Ribbons

Vopson, Melvin

Cookson, R.

Bissell, P.

Portsmouth University Research Portal (Pure)

Anisotropy field measurements using an extended rotational remanence technique

S.N. Klausen

P.-A. Lindg�rd

K. Lefmann

F. B�dker

S. M�rup

Crossref

Temperature Dependence of the Magnetization of Disc Shaped NiO Nanoparticles

Contains fulltext :
                  92613.pdf (publisher's version ) (Closed access

Lyubchanskii, I.L.

Dadoenkova, N.N.

Lyubchanskii, M.I.

Guslienko, K.Y.

Rasing, T.H.M.

Radboud Repository

Second harmonic light scattering by magnetic dots

Pure OAI Repository

We have performed room temperature Conversion Electron Mössbauer Spectroscopy (CEMS) on thin films and multilayers of DyFe2, YFe2 and HoFe2 under applied magnetic fields of 0 T and 0.25 T in plane. The samples were constructed by M.R. Wells and R.C.C. Ward using Molecular Beam Epitaxy on sapphire substrates giving single crystals with the [110] plane parallel to the surface. The samples produced and studied are: thin films of DyFe2, YFe2 and HoFe2; multilayers of DyFe2/YFe2 with respective layer thicknesses of 50 Å/50 Å, 40 Å/20 Å, 20 Å/40 Å and 20 Å/20 Å. In all spectra the fits obtained are different to those found in bulk samples: all the iron sites in the cubic Laves Phase unit cell are magnetically inequivalent and the spins on the iron atoms always have a component perpendicular to the layers, With a field of 0.25 T applied in the plane of the sample the iron spins in the YFe2 thin film are rotated into the plane by a large amount (8.5°) compared to only a minor change in the DyFe2 thin film (1°). In multilayer systems the iron atom spins in the YFe2 layers appear to be locked to those in the DyFe2 layers

Bland, J

Thomas, M

Wells, MR

Ward, RCC

Oxford University Research Archive

A Mossbauer study of DyFe2, YFe2 and HoFe2 thin films and multilayers

We present neutron diffraction data of NiO nanoparticles measuring the total magnetization and the sublattice magnetization at various temperatures. Electron microscopy shows that the particles are disc shaped with average diameter of about 12 nm and a thickness of about 2 nm. The Neel temperature (approximate to460 K) is less than for bulk NiO (523 K). The magnetic domain size, as estimated from the width of the neutron diffraction peaks corresponding to the antiferromagnetic reflection is smaller than the particle size estimated from the structural peaks. A ferromagnetic contribution is present as a temperature dependent contribution of a structural peak in contrast to bulk NiO. The two magnetic signals vanish at the same temperature. The data are interpreted on the basis of an extended mean field model on disc shaped NiO particles. This model includes the finite size dependence of the effective field experienced on the position of the atom. The experimental findings are in agreement with the theoretical model

Two-dimensional topological solitons in rectangular magnetic dots

Abstract

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NARCIS

Archivio istituzionale della ricerca - INRIM

Portsmouth University Research Portal (Pure)

Crossref

Radboud Repository

Pure OAI Repository

Oxford University Research Archive

Pure OAI Repository

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