M. Maxwell

Superconductivity in Ru 1 − x Sr 2 GdCu 2 + x O 8 − y compounds

We report on the properties of new ruthenocuprates

Contribution of oxygen partial pressures investigated over a wide range to SrRuO3 thin-film properties in laser deposition processing

{\mathrm{Ru}}_{1\ensuremath{-}x}{\mathrm{Sr}}_{2}{\mathrm{GdCu}}_{2+x}{\mathrm{O}}_{8\ensuremath{-}y}

Magnetic properties of RuSr2RECu2O8 (RE = Gd, Eu) and Ru1-xSr2GdCu2+xO8-y superconductors

(x=0,

Magnetic and superconducting properties of RuSr2GdCu2O8; the effect of synthesis☆

0.1, 0.2, 0.3, 0.4, and 0.75) that extend the superconductivity found previously in

Magnetic behavior of superconducting RuSr2GdCu2O8 studied by 155Gd and 99Ru Mössbauer spectroscopy and susceptibility measurements

{\mathrm{RuSr}}_{2}{\mathrm{GdCu}}_{2}{\mathrm{O}}_{8}{(T}_{c}=45\mathrm{K})

Superconductivity and Magnetism in Pure and Substituted RuSr2GdCu2O8

to the solid solution with varied Ru/Cu ratios. The compounds have been synthesized in a high-pressure oxygen atmosphere. The maximum temperature of the superconducting transition is 72 K for the

Nuclear magnetic resonance and magnetization studies of the ferromagnetic ordering temperature suppression in Ru deficient SrRuO3

x=0.3

On the magnetic and superconducting properties of Ru1−xSr2RECu2+xO8−d, RE=Gd, Eu, compounds

and 0.4 compositions. The reported behavior of magnetization at low temperatures can be qualitatively explained assuming a quasi-two-dimensional character of the superconducting regions in the compounds studied.

Magnetism and Superconductivity in Ru 1− x Sr 2 RECu 2+ x O 8− d (RE=Gd, Eu) and RuSr 2 Gd 1− y Ce y Cu 2 O 8 Compounds

SrRuO3 (SRO) thin films were grown on SrTiO3 (100) substrates using the pulsed laser deposition method. In order to fully exploit the correlation between their properties and the partial (working) pressures of oxygen in which they are grown, a wide range of pressures—from 0.1to300mTorr—was investigated. SRO ablation plumes showed a shape transition from forward directed to confined isotropic at 60mTorr. Also, all measured properties of SRO films displayed significant changes at 60mTorr. Out-of-plane lattice constants and strains of SRO films were quite large for low-pressure growth (up to 10mTorr), but became notably minimized at 60mTorr and continued to change gradually with further pressure increases. Ru deficiencies seemed to occur regardless of working pressure value. The island growth mode was dominant for low pressures up to 10mTorr, followed by the step flow growth mode at 60mTorr and step flow plus two-dimensional growth at 200mTorr, reverting then back into island growth at 300mTorr. Only those S...