Magnetic properties of g-Fe2O3 dis- persed particles: size and matrix effects. J Magn Magn Mater 2004;272e276:1474e5.E. Tronc, M. Nogue`s, C. Chane´ac et al., "Magnetic properties of 𝛾-Fe2O3 dispersed particles: size and matrix effects," Journal of Magnetism and Magnetic ...
The model proposed in this paper is a naive toy one, as it assumes that a particle with fractional spin can be used as a building block (preon [4]) for the majority of the known particles. Also in four dimension, anyway, the search for exotic statistics is an active field [5]....
关键词: physics of elementary particles and fields b1-1235 mesons photoproduction omega-783 mesons particle production photon-proton interactions angular distribution bubble chambers decay experimental data DOI: 10.1103/PhysRevD.37.2379 被引量: 10 ...
Evidence for t\\bar{t}\\gamma Production and Measurement of \\sigma_t\\bar{t}\\gamma / \\sigma_t\\bar{t} Using data corresponding to 6.0/fb of ppbar collisions at sqrt(s) = 1.96 TeV collected by the CDF II detector, we present a cross section measurement of top-quark pair prod...
We present the results of a redshift survey of both cluster and intercluster galaxies in the central part of the Shapley Concentration, the richest supercluster of clusters in the nearby Universe, consisting of ~2000 radial velocities. We estimate the total overdensity in galaxies of the superclus...
Topological one-dimensional superconductors can sustain zero energy modes protected by different kinds of symmetries in their extremities. Observing these excitations in the form of Majorana fermions is one of the most intensive quests in condensed matte
One-step synthesis of hematite (??-Fe2O3) nano-particles by direct thermal-decomposition of maghemite In this research work, α-Fe 2O 3 nano-particles were prepared by direct thermal-decomposition of γ-Fe 2O 3. Precursor powders (γ-Fe 2O 3) were synthesiz... E Darezereshki - 《...
Measurement of Optical Properties of Small Particles We have measured the optical constants of montmorillonite and the separated coats and cores of B. subtilis spores over the wavelength interval from 200 nm ... ET Arakawa,PS Tuminello,BN Khare,... - 《Philosophical Transactions of the Royal Soci...
With the decrease of aging temperature, the average size of gamma' phase decreases, but the volume fraction of gamma' phase increases. The lower aging temperature suppresses the growing of the coarse gamma' particles, but facilitates the growth of the fine gamma' particles. After the optimum ...
We report the magnetic properties for dispersed, spherical Fe3O4 and gamma-Fe2O3 particles similar to 250 nm in diameter in the temperature range T = 4.2-294 K. For Fe3O4, hysteresis properties show anomalies at 130 K, where the magnetocrystalline anisotropy constant K-1 vanishes; the ra...