Combined effect of Pr and Mn on the resistivity and low-field AC susceptibility of Y0.95Pr0.05Ba2(Cu1-xMnx )3O7-δ superconductors for x ≤ 0.02

Bhasker Gahtori; R. Lal; M. A.H. Ahsan; Radhe Shyam; Ashok Rao; S. K. Agarwal

doi:10.1016/j.physc.2006.08.002

Combined effect of Pr and Mn on the resistivity and low-field AC susceptibility of Y_0.95Pr_0.05Ba₂(Cu_1-xMn_x)₃O_7-δ superconductors for x ≤ 0.02

Bhasker Gahtori^*, R. Lal, M. A.H. Ahsan, Radhe Shyam, Ashok Rao, S. K. Agarwal

^*Corresponding author for this work

Department of Physics, Manipal Institute of Technology, Manipal

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

8 Citations (Scopus)

Abstract

Resistivity and low-field (40 A/m) susceptibility measurements are performed on the samples of Y_0.95Pr_0.05Ba₂(Cu_1-xMn_x)₃O_7-δ (x ≤ 0.02). It has been observed that above x = 0.005 resistivity decreases drastically in the presence of Pr atoms. Analyzing this feature it has been argued that potential scattering alone is inadequate for explaining the resistivity behaviour. Prominent role of the electronic effects is expected for increasing Mn content. Analyzing the imaginary part of ac susceptibility at the peak temperatures it has been found that the superconducting volume fraction f_g is 0.12 for x = 0, but reduces drastically to 0.03 for x = 0.005. For other values of x, f_g is higher than 0.12.

Original language	English
Pages (from-to)	128-132
Number of pages	5
Journal	Physica C: Superconductivity and its Applications
Volume	449
Issue number	2
DOIs	https://doi.org/10.1016/j.physc.2006.08.002
Publication status	Published - 15-11-2006

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Combined effect of Pr and Mn on the resistivity and low-field AC susceptibility of Y0.95Pr0.05Ba2(Cu1-xMnx )3O7-δ superconductors for x ≤ 0.02",

abstract = "Resistivity and low-field (40 A/m) susceptibility measurements are performed on the samples of Y0.95Pr0.05Ba2(Cu1-xMnx )3O7-δ (x ≤ 0.02). It has been observed that above x = 0.005 resistivity decreases drastically in the presence of Pr atoms. Analyzing this feature it has been argued that potential scattering alone is inadequate for explaining the resistivity behaviour. Prominent role of the electronic effects is expected for increasing Mn content. Analyzing the imaginary part of ac susceptibility at the peak temperatures it has been found that the superconducting volume fraction fg is 0.12 for x = 0, but reduces drastically to 0.03 for x = 0.005. For other values of x, fg is higher than 0.12.",

author = "Bhasker Gahtori and R. Lal and Ahsan, {M. A.H.} and Radhe Shyam and Ashok Rao and Agarwal, {S. K.}",

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T1 - Combined effect of Pr and Mn on the resistivity and low-field AC susceptibility of Y0.95Pr0.05Ba2(Cu1-xMnx )3O7-δ superconductors for x ≤ 0.02

AU - Gahtori, Bhasker

AU - Lal, R.

AU - Ahsan, M. A.H.

AU - Shyam, Radhe

AU - Rao, Ashok

AU - Agarwal, S. K.

PY - 2006/11/15

Y1 - 2006/11/15

N2 - Resistivity and low-field (40 A/m) susceptibility measurements are performed on the samples of Y0.95Pr0.05Ba2(Cu1-xMnx )3O7-δ (x ≤ 0.02). It has been observed that above x = 0.005 resistivity decreases drastically in the presence of Pr atoms. Analyzing this feature it has been argued that potential scattering alone is inadequate for explaining the resistivity behaviour. Prominent role of the electronic effects is expected for increasing Mn content. Analyzing the imaginary part of ac susceptibility at the peak temperatures it has been found that the superconducting volume fraction fg is 0.12 for x = 0, but reduces drastically to 0.03 for x = 0.005. For other values of x, fg is higher than 0.12.

AB - Resistivity and low-field (40 A/m) susceptibility measurements are performed on the samples of Y0.95Pr0.05Ba2(Cu1-xMnx )3O7-δ (x ≤ 0.02). It has been observed that above x = 0.005 resistivity decreases drastically in the presence of Pr atoms. Analyzing this feature it has been argued that potential scattering alone is inadequate for explaining the resistivity behaviour. Prominent role of the electronic effects is expected for increasing Mn content. Analyzing the imaginary part of ac susceptibility at the peak temperatures it has been found that the superconducting volume fraction fg is 0.12 for x = 0, but reduces drastically to 0.03 for x = 0.005. For other values of x, fg is higher than 0.12.

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Combined effect of Pr and Mn on the resistivity and low-field AC susceptibility of Y_0.95Pr_0.05Ba₂(Cu_1-xMn_x)₃O_7-δ superconductors for x ≤ 0.02

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