Investigation of the effect of Mn²⁺ doping on Bi₂Sr_2-xMn_xCaCu₂O_y

Authors

Leonalyn Bambao ⋅ PH National Institute of Physics, University of the Philippines Diliman
Roland Sarmago ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

We investigate the effect of Mn²⁺ substitution on the superconducting properties, critical current variation with applied magnetic field, and flux pinning effects of
the Bi₂Sr_2-xMn_xCaCu₂O_y system. Transport measurements were performed for the purpose of characterization. Transition temperature Tc increased for lower
doping with x=0.03 having the highest at 92K and then decreases for higher doping levels. Voltage-current measurements also showed that Mn content of
x=0.03 has the highest critical current (Ic). Normalized Ic plots showed that Mn at the Sr site might not play a vital role on the pinning properties of the Bi-2212
superconductor. Results point to interlayer coupling changes to be the primary factor on the change of Tc and Ic due to the distortions it does on the CuO2
layers. This study gives more understanding to the role of Sr on the superconducting mechanism of the Bi-2212 superconductor.

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Issue

2012: Proceedings of the 30th Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP2012-PB-11

Section

Poster Session PB

Published

2012-10-22

How to Cite

[1]

L Bambao and R Sarmago, Investigation of the effect of Mn2+ doping on Bi2Sr2-xMnxCaCu2Oy, Proceedings of the Samahang Pisika ng Pilipinas 30, SPP2012-PB-11 (2012). URL: https://proceedings.spp-online.org/article/view/SPP2012-PB-11.