Search Results - "Tucker, J.W"

Monte Carlo study of a mixed spin-1 and spin-3/2 Ising ferromagnet by Nakamura, Y., Tucker, J.W.

“…The magnetic properties of a mixed spin-1 and spin-3/2 Ising ferromagnetic system on a cubic lattice are studied by Monte Carlo simulation. In particular the…”
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The ferrimagnetic mixed spin [formula omitted] and spin 1 Ising system by Tucker, J.W.

“…A cluster variational theory, within pair approximation, of the mixed spin 1 2 –spin 1 ferrimagnet with single-ion anisotropy, is presented. General…”
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Computer simulation of the effect of an ultra soft phase on the magnetic properties of nanocrystalline permanent magnets by Griffiths, M.K., Bishop, J.E.L., Tucker, J.W., Davies, H.A.

“…Micromagnetic models of assemblies of randomly oriented, exchange coupled, nanocrystals consisting of a magnetically hard uniaxial phase (typified by Nd 2Fe…”
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Computer simulation of single-phase nanocrystalline permanent magnets by GRIFIITHS, M. K, BISHOP, J. E. L, TUCKER, J. W, DAVIES, H. A

“…Demagnetizing curves have been calculated numerically for three-dimensional micromagnetic model assemblies of randomly oriented, magnetically hard, exchange…”
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An effective field theory for dilute anisotropic Heisenberg ferromagnets by Idogaki, T., Miyoshi, Y., Tucker, J.W.

“…Dilute anisotropic Heisenberg ferromagnets have been studied by an effective field theory based on a two-site cluster approximation with an Ising character…”
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Initial static susceptibilities of nonuniform and random Ising chains by Derzhko, Oleg, Zaburannyi, Oles', Tucker, J.W.

“…Within the conventional framework of standard linear response theory we have derived exact results for the initial static susceptibilities of nonuniform spin-…”
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Exact initial transverse susceptibility for a random-bond Ising chain by Idogaki, T., Rikitoku, M., Tucker, J.W.

“…The exact initial transverse susceptibility, χ ⊥, of a random-bond Ising chain has been derived by a method based on the use of a statistical identity of the…”
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Simulation of magnetization ripples on Permalloy caused by surface anisotropy by Hua, Lu, Bishop, J.E.L., Tucker, J.W.

“…A micromagnetic study of the magnetization distribution near the surface of bulk Permalloy shows the presence of periodic rippling in the magnetization. The…”
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Mixed spin 1–spin 3/2 Blume–Capel Ising ferromagnet by Tucker, J.W.

“…The mixed spin 1–spin 3/2 Blume–Capel Ising model is treated by a cluster variational theory, within pair approximation. The dependence of the phase diagram on…”
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Cluster variational theory of spin [formula omitted] Ising models by Tucker, J.W.

“…A cluster variational method for spin 3 2 Ising models on regular lattices is presented that leads to results that are exact for Bethe lattices of the same…”
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The spin 1 Blume Capel model with RKKY interactions by Balcerzak, T., Tucker, J.W.

“…It is shown how the pair approximation in cluster variational method can provide a tractable method for studying Ising models with long-range interactions. As…”
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INFLUENCE OF FIRE ON BACHMAN'S SPARROW, AN ENDEMIC NORTH AMERICAN SONGBIRD by TUCKER, JAMES W, ROBINSON, W. DOUGLAS, GRAND, JAMES B

“…Bachman's sparrow (Aimophila aestivalis), a near endemic songbird of the longleaf pine (Pinus palustris) ecosystem, is known to respond positively to…”
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Phase diagram of a spin-1 magnetic bilayer by cluster variational theory: Exact results for a BEG model on a Bethe lattice with five-fold coordination by Tucker, J.W., Balcerzak, T., Gzik, M., Sukiennicki, A.

“…The complete global phase diagram for a magnetic spin-1 bilayer, whose interactions are described by the Blume Emery Griffiths model (BEG), is studied by…”
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New micromagnetic states in non-ellipsoidal nanoparticles by Tartakovskaya, E.V, Tucker, J.W, Ivanov, B.A

“…The ground magnetic state and phase transitions in soft ferromagnetic particles of near-cubic and near-quadratic shapes are investigated. New stable…”
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A Monte Carlo study of thin spin-1 Ising films with surface exchange enhancement by Tucker, J.W

“…Using extensive Monte Carlo simulations the effect of surface exchange enhancement on ultrathin spin-1 Ising films (having simple cubic symmetry) ranging in…”
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Finite element approximation of a phase field model arising in nanostructure patterning by Nürnberg, Robert, Tucker, Edward J. W.

“…We consider a fully practical finite element approximation of the nonlinear parabolic Cahn–Hilliard system γ ∂ u ∂ t − ∇ _   · ( ∇ _   w ) = 0   ,   w = − γ Δ…”
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3-D micromagnetic simulation of a Bloch line between C-sections of a 180° domain wall in a {1 0 0} iron film by Huo, S., Bishop, J.E.L., Tucker, J.W., Rainforth, W.M., Davies, H.A.

“…The micromagnetic structure and energy of a Bloch line (BL) in an asymmetric 180° Bloch domain wall in a 60 nm {1 0 0} iron film have been calculated. In the…”
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An effective field study of the staggered quadrupolar phase in the BEG model by TUCKER, J. W

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Phase transitions of a spin-one magnetic film by Balcerzak, T., Tucker, J.W.

“…A cluster variational method is developed and applied in a study of a spin 1 BEG model of a magnetic film. The phase diagrams for films of different thickness…”
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Non-uniform micromagnetic structures in asymmetrical ellipsoidal particles by Usov, N.A., Kurkina, L.G., Tucker, J.W.

“…Simulations of non-uniform micromagnetic structures for magnetically soft asymmetrical ellipsoidal particles having different aspect ratios and anisotropy…”
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