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We report the charge state modification effects at the Mn site on the ground state properties of colossal magnetoresistive manganites. Ta<Superscript>5+</Superscript> substitution results in an appreciable increase in the lattice parameters and unit cell volume due to increased Mn<Superscript>3+</Superscript> concentration. The...</superscript></superscript>
Persistent link: https://www.econbiz.de/10009280971
Within the framework of two-dimensional (2D) numerical micromagnetic simulations, the equilibrium magnetization configuration and the high-frequency (0.1–30 GHz) linear response of Co/Fe multilayers have been investigated in detail. Due to the perpendicular anisotropy of Co layers, a stripe...
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We present a heuristic, semiphenomenological model of the anomalous temperature (T) dependence of resistivity ρ <Subscript> xx </Subscript> recently observed experimentally in the quasi-one-dimensional (Q1D) organic conductors of the (TMTSF)<Subscript>2</Subscript>X family in moderately strong magnetic fields. We suggest that a Q1D...</subscript></subscript>
Persistent link: https://www.econbiz.de/10010992885
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The spin-resolved electronic structure of thin Cr overlayers on top of the Fe(110) surface was investigated by means of spin- and angle-resolved photoelectron spectroscopy. The initial fast drop of photoelectron spin-polarization at the Fermi level, followed by weak oscillatory behavior with the...
Persistent link: https://www.econbiz.de/10009280287
We have investigated the effect of the magnetic field (B) on the very low-temperature equilibrium heat capacity c<Subscript>eq</Subscript> of the quasi-1 D organic compound (TMTTF)<Subscript>2</Subscript>Br, characterized by a commensurate Spin Density Wave (SDW) ground state. Below 1 K, c<Subscript>eq</Subscript> is dominated by a Schottky-like A<Subscript>S</Subscript>T<Superscript>-2</Superscript>...</superscript></subscript></subscript></subscript></subscript>
Persistent link: https://www.econbiz.de/10009280675
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A numerical method is described for evaluating transverse spin correlations in the random phase approximation. Quantum spin-fluctuation corrections to sublattice magnetization are evaluated for the antiferromagnetic ground state of the half-filled Hubbard model in two and three dimensions in the...
Persistent link: https://www.econbiz.de/10010992648