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Home  >  Journal list  >  Journal of the Ceramic Society of Japan ( 2003 - 2007 )  >  Vol.113  No.1322 (October) (2005)  >  pp.678-683

Journal of the Ceramic Society of Japan ( 2003 - 2007 )
<<Previous article Vol.113  No.1322 (October) (2005)   pp.678 - 683 Next article>>

Synthesis of High-Tc Superconductor Hg0.8M0.2Ba2Ca2Cu3Oy (M=V, Cr, Mn, Mo, Ag, In, Sn, W, Re, Pb, Hf, Ta) by Quartz-Tube Encapsulation Technique

Seiji ADACHI1), Tsuyoshi SUGANO1), Yoshiyuki MORIWAKI1) and Keiichi TANABE1)
1) Superconductivity Research Laboratory, ISTEC

  Samples with nominal compositions of Hg0.8M0.2Ba2Ca2Cu3Oy (M=V, Cr, Mn, Mo, Ag, In, Sn, W, Re, Pb, Hf, Ta) were prepared by a conventional quartz-tube encapsulation method at ambient pressure. The 1223 phase formed in the samples with dopants except In and W. Ag, Re and Pb-doping effectively expanded the temperature range for formation reaction of the 1223 phase. For samples with V, Cr, Mn, Mo and Re, appreciable shortening in the lattice parameter c was observed. It suggested incorporation of the dopants into the 1223 phase. Magnetization measurements at 77 K revealed that an enhancement in the critical current density was achieved in the samples with Re and Mo.



Keyword:
HgBa2Ca2Cu3O8, Hg-1223, Doping, Substitution, Critical current density

Received: July 08, 2005
Accepted: August 19, 2005 , Published online: October 01, 2005
Copyright (c) 2005 The Ceramic Society of Japan

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