Effects of rare earth ion substitution for Ca in (Bi,Pb):2223 superconductors

G. Ilonca; A. V. Pop; T. R. Yang; I. Gr Deac; C. Lung; R. Stiufiuc; G. Stiufiuc

doi:10.1016/S1466-6049(01)00048-4

Effects of rare earth ion substitution for Ca in (Bi,Pb):2223 superconductors

G. Ilonca^*
, A. V. Pop
, T. R. Yang
, I. Gr Deac
, C. Lung
, R. Stiufiuc
, G. Stiufiuc

^*Corresponding author for this work

Department of Physics

Research output: Contribution to journal › Article › peer-review

17 Citations (Scopus)

Abstract

The effect of partial replacement of Ca by Y, Er and Lu on the structural transport properties of (Bi_1.6Pb_0.4) (Sr_1.8Ba_0.2) (Ca_1-xR_x)₂Cu₃O_y superconductors ceramics (0≤x≤0.03) have been investigated. The substitution of Y, Lu and Er at the Ca site induced the decrease of the volume fraction for the 2223 phase and the increase of the 2212 and 2201 phases volume fractions. In the normal state, all the samples are characterized by a linear temperature dependence of electrical resistivity and Hall concentrations. The rate of depression for the critical temperature in x = 0.02 samples found to be nearly the same for all of these substitutions. The nature of T_c suppression may be attributed to the increase of oxygen content in Bi₂O₂ double layers with increasing Y, Lu and Er concentrations. The sample shows a linear dependence of intergranular temperature as a function of AC field amplitude, which is in agreement with the Müller critical state model.

Original language	English
Pages (from-to)	769-772
Number of pages	4
Journal	International Journal of Inorganic Materials
Volume	3
Issue number	7
DOIs	https://doi.org/10.1016/S1466-6049(01)00048-4
Publication status	Published - 2001

Keywords

Rare earth ions substitution
Superconductors

ASJC Scopus subject areas

Materials Chemistry

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10.1016/S1466-6049(01)00048-4

Cite this

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title = "Effects of rare earth ion substitution for Ca in (Bi,Pb):2223 superconductors",

abstract = "The effect of partial replacement of Ca by Y, Er and Lu on the structural transport properties of (Bi1.6Pb0.4) (Sr1.8Ba0.2) (Ca1-xRx)2Cu3Oy superconductors ceramics (0≤x≤0.03) have been investigated. The substitution of Y, Lu and Er at the Ca site induced the decrease of the volume fraction for the 2223 phase and the increase of the 2212 and 2201 phases volume fractions. In the normal state, all the samples are characterized by a linear temperature dependence of electrical resistivity and Hall concentrations. The rate of depression for the critical temperature in x = 0.02 samples found to be nearly the same for all of these substitutions. The nature of Tc suppression may be attributed to the increase of oxygen content in Bi2O2 double layers with increasing Y, Lu and Er concentrations. The sample shows a linear dependence of intergranular temperature as a function of AC field amplitude, which is in agreement with the M{\"u}ller critical state model.",

keywords = "Rare earth ions substitution, Superconductors",

author = "G. Ilonca and Pop, \{A. V.\} and Yang, \{T. R.\} and Deac, \{I. Gr\} and C. Lung and R. Stiufiuc and G. Stiufiuc",

year = "2001",

doi = "10.1016/S1466-6049(01)00048-4",

language = "English",

volume = "3",

pages = "769--772",

journal = "International Journal of Inorganic Materials",

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TY - JOUR

T1 - Effects of rare earth ion substitution for Ca in (Bi,Pb):2223 superconductors

AU - Ilonca, G.

AU - Pop, A. V.

AU - Yang, T. R.

AU - Deac, I. Gr

AU - Lung, C.

AU - Stiufiuc, R.

AU - Stiufiuc, G.

PY - 2001

Y1 - 2001

N2 - The effect of partial replacement of Ca by Y, Er and Lu on the structural transport properties of (Bi1.6Pb0.4) (Sr1.8Ba0.2) (Ca1-xRx)2Cu3Oy superconductors ceramics (0≤x≤0.03) have been investigated. The substitution of Y, Lu and Er at the Ca site induced the decrease of the volume fraction for the 2223 phase and the increase of the 2212 and 2201 phases volume fractions. In the normal state, all the samples are characterized by a linear temperature dependence of electrical resistivity and Hall concentrations. The rate of depression for the critical temperature in x = 0.02 samples found to be nearly the same for all of these substitutions. The nature of Tc suppression may be attributed to the increase of oxygen content in Bi2O2 double layers with increasing Y, Lu and Er concentrations. The sample shows a linear dependence of intergranular temperature as a function of AC field amplitude, which is in agreement with the Müller critical state model.

AB - The effect of partial replacement of Ca by Y, Er and Lu on the structural transport properties of (Bi1.6Pb0.4) (Sr1.8Ba0.2) (Ca1-xRx)2Cu3Oy superconductors ceramics (0≤x≤0.03) have been investigated. The substitution of Y, Lu and Er at the Ca site induced the decrease of the volume fraction for the 2223 phase and the increase of the 2212 and 2201 phases volume fractions. In the normal state, all the samples are characterized by a linear temperature dependence of electrical resistivity and Hall concentrations. The rate of depression for the critical temperature in x = 0.02 samples found to be nearly the same for all of these substitutions. The nature of Tc suppression may be attributed to the increase of oxygen content in Bi2O2 double layers with increasing Y, Lu and Er concentrations. The sample shows a linear dependence of intergranular temperature as a function of AC field amplitude, which is in agreement with the Müller critical state model.

KW - Rare earth ions substitution

KW - Superconductors

UR - https://www.scopus.com/pages/publications/0035655248

UR - https://www.scopus.com/pages/publications/0035655248#tab=citedBy

U2 - 10.1016/S1466-6049(01)00048-4

DO - 10.1016/S1466-6049(01)00048-4

M3 - Article

AN - SCOPUS:0035655248

SN - 1466-6049

VL - 3

SP - 769

EP - 772

JO - International Journal of Inorganic Materials

JF - International Journal of Inorganic Materials

IS - 7

ER -

Effects of rare earth ion substitution for Ca in (Bi,Pb):2223 superconductors

Abstract

Keywords

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