Synthesis of cuprate superconductors

CNR Rao, R Nagarajan… - … Science and Technology, 1993 - iopscience.iop.org
A variety of synthetic strategies has been employed to prepare pure monophasic cuprates of
different families with good superconducting properties. Besides the traditional ceramic …

Application of high-pressure techniques: stabilization and oxidation-state control of novel superconductive and related multi-layered copper oxides

H Yamauchi, M Karppinen - Superconductor Science and …, 2000 - iopscience.iop.org
Copper oxide superconductors possess multi-layered structures with a layer sequence of-
CuO 2-(Q-CuO 2) n-1-AO-(MO 1±) m-AO-or-CuO 2-B-(O 2-B) s-1-CuO 2-AO-(MO 1±) m-AO …

Magnetic penetration depth and condensate density of cuprate high- superconductors determined by muon-spin-rotation experiments

C Bernhard, C Niedermayer, U Binninger, A Hofer… - Physical Review B, 1995 - APS
We summarize our results of transverse-field muon-spin-relaxation (TF-μSR) experiments on
a variety of polycrystalline cuprate high-T c superconducting systems. In this paper we …

Control of the charge inhomogeneity and high-Tc superconducting properties in homologous series of multi-layered copper oxides

M Karppinen, H Yamauchi - Materials Science and Engineering: R: Reports, 1999 - Elsevier
A systematic view stemmed for the most important parts from the authors' own research
results is presented for tailoring high-Tc superconductive copper oxides from the standpoint …

Preparation and properties of YSr2Cu3− xMxOy (M= Li, Al, Ti, V, Cr, Fe, Co, Ga, Ge, Mo, WandRe)

T Den, T Kobayashi - Physica C: Superconductivity, 1992 - Elsevier
We have investigated the composition YSr 2 Cu 3-x M x O y and obtained the 123-structure
for M= Li, Al, Ti, V, Cr, Fe, Co, Ga, Ge, Mo, W and Re. Superconductivity is observed for the …

Universal trends in extreme type-II superconductors

T Schneider, H Keller - Physical review letters, 1992 - APS
Experimental results of the muon-spin-relaxation rate, the pressure dependence coefficient
and the isotope effect coefficient of the transition temperature of extreme type-II …

Superconductivity at 28 K in a cuprate with a niobium oxide intermediary layer

RJ Cava, JJ Krajewski, H Takagi… - Physica C …, 1992 - Elsevier
A new copper oxide based superconductor is reported based on the ordered interleaving of
NbO 6 or TaO 6 octahedra between the apices of copper oxide pyramids. Good bulk …

Transport characterization of calcium-doped thin films

JT Kucera, JC Bravman - Physical Review B, 1995 - APS
We report systematic studies of the normal-state conductivity and thermopower of epitaxial Y
1− x Ca x Ba 2 Cu 3 O 7− δ thin films with 0≤ x≤ 0.3 as a function of oxygen content. The …

Synthesis and characterization of the superconducting cuprates (Pb,Cu)(Y,Ca)

T Maeda, K Sakuyama, S Koriyama, H Yamauchi… - Physical Review B, 1991 - APS
Single-phase ceramics of superconducting Pb-based layered copper oxides (Pb (1+ x)/2 Cu
(1− x)/2) Sr 2 (Y 1− x Ca x) Cu 2 O z (x= 0–0.35 and z≃ 7) are successfully synthesized in an …

Structural changes accompanying oxygen incorporation in (Pb0. 65Cu0. 35Sr2 (Y0. 7Ca0. 3) Cu2O7+ δ

T Maeda, K Sakuyama, F Izumi, H Yamauchi… - Physica C …, 1991 - Elsevier
The structure parameters of superconducting (Pb 0.65 Cu 0.35) Sr 2 (Y 0.7 Ca 0.3) Cu 2 O
7.0 and nonsuperconducting (Pb 0.65 Cu 0.35) Sr 2 (Y 0.7 Ca 0.3) Cu 2 O 7.1 were refined …