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Superconductivity in Layerd Cuprate

Abd Shukor, Roslan, Kek, C. A. and Yeoh, W. K. (2005) Superconductivity in Layerd Cuprate. Pertanika Journal of Science & Technology, 13 (1). pp. 127-138. ISSN 0128-7680

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Abstract

A series of layered cuprate (Rut_xNb)Sr2GdCups (Ru1212) for 0 :5 x :5 1 has been synthesized by the solid state reaction method. Powder X-ray diffraction analysis indicates that oxygen flow is important in the formation of the Ru1212 phase and superconductivity in the system. Samples with nominal composition (Rul_ x b)Sr2GdCu20 S can be indexed as a tetragonal structure with space group P4/mmm. The undoped compound exhibits the highest superconducting transition with Tc onsel of 65 K and Tc zero of 55 K. Our results also show that doping with b decreases the normal state conductivity and suppresses superconductivity in the system.

Item Type:Article
Keyword:Electrical resistance, Ru-based superconductor, transition temperature PACS No.: 74.25.Fy, 74.62.Bf, 74.72.Jt
Publisher:Universiti Putra Malaysia Press
ID Code:3848
Deposited By: Nur Izzati Mohd Zaki
Deposited On:02 Dec 2009 02:06
Last Modified:27 May 2013 07:11

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