On The Suppression Of Superconductivity In ErBa 2 Cu 3 O X

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Analysis of fluctuation conductivity of polycrystalline Er Pr

1 −xPr xBa 2Cu 3O 7 δ for x = 0.00, x = 0.05 and x = 0.10 are displayed in Fig. 1. The X-ray pattern almost completely matches the or-thorhombicEr−123structure(comparedwithJCPDSfiles), and belongs to the ErBa 2Cu 3O 7−δ orthorhombic unit cell with symmetry Pmmm. Also, all samples were found to be nearly single-phase, and show no

Multisample Data Acquisition System for Resistance

on the structure and superconducting properties of Er-Ba-Cu-Osystem. Solid Slale Comm. 74: 629-632. KIRKUP, L. 1988. Resistance measurements as a function of temperature on the high-tc superconductor YBa 2 Cu 3 0 7. Eur. J. Physics 9: 4. MALETTA, H., E. P RSCHKE, B. Rupp and P. MEUFFELS. 1989. On the suppression of superconductivity in ErBa 2

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x Ca x Ba 2 Cu 3 O 6.30 (Fig. 7.3) and Y 0.4 Pr 0.6 Ba 2-x Sr x Cu 3 O 7 (Fig. 7.4) systems with increase in x. While the Y3+ site Ca2+ substitution directly dopes the mobile p-type carriers to bring in superconductivity, in later the Ba site Sr substitution de-localizes the carriers by decreasing the Pr-4f hybridization with O-2p in otherwise

Fe content variation and superconducting order parameter

2 Experimental Details ErBa2Cu3-xFe xO7-δ pellets for x = 0.0, 0.03, 0.05, 0.09, and 0.18 were synthesized, in a single batch, by solid state chemical reaction process by mixing the powders of Er2O3, BaCO3, CuO and Fe2O3 of 5N purity (99.999%) in the stoichiometric ratio 1:2:3. Three intermediate grindings and calcinations in the


Jun 14, 2019 2 planes and Cu O chains when the above trivalent cations are substituted at the Cu(1) site of Cu O chains. 2. Experimental details Polycrystalline samples of ErBa 2Cu 3−xMxO 7−y (M = Fe, Co, Ni and Ga) with x = 0.0,0.03,0.045 and 0.06 were synthesized via a solid state reaction route by mixing and grinding of high purity Er 2O 3, BaCO


For x < 0.25, Td are all above 92K. For x > 0.3 T drops sharply to about 84K, and finally for x=OS T, falls to 30K and T is below 1OK. Our results suggest that the small compatibility of Nd and Ba in YBa,Cu,O, system does not seriously suppress the superconductivity. I. INTRODUCTION It is well known that ReBa,Cu,O, (ReBCO)

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Jul 11, 2020 2 Cu 3 O 7- delta G K Bichile, K M Jadhav, R L Raibagkar et al.-Influence of hole filling and pair breaking by Nd and hole doping by Ca on the superconductivity of NdBa 2 Cu 3 O z K M Pansuria, D G Kuberkar, G J Baldha et al.-Cu-Ga and coupledNd-Ca/Cu-Ga substitution Amish G Joshi and R G Kulkarni-Recent citations The conduction mechanism in Gd

layered antiferromagnetic superconductor arXiv:cond-mat

2 − u w 3#, (2) where V 0 = 2 3 ϕ0j c2π d2 w 3and w = 3d π j −j 2jc 1 2may be thought as the width of the barrier because V(0) = V(w) = 0, jc is the critical depinning current. The last term in Eq.(1) is the so-called Caldeira-Leggett action [11], which describes ohmic damping produced by the coupling to the heat-bath of harmonic oscil


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