Journal ArticleDOI
Superconductivity studies on TlMBaCuO (M = Ce, Th, Pr, Tb, Pb, and Te) system☆
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In this paper, superconductivity with a T{sub c,zero} at 75 plus minus 1 K has been observed in Tl-M-Ba-Cu-O (M = Ce, Th) system for a starting nominal composition of Tl{sub 2.2}M{sub 1}Ba{ sub 2}Cu{sub 3}O{sub y}.About:
This article is published in Journal of Solid State Chemistry.The article was published on 1990-09-01. It has received 2 citations till now.read more
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Superconductivity studies on Tl-Th-Sr-Ca-Cu-O system
TL;DR: In this paper, the authors show that the 1212 phase gets stabilized due to part substitution of Th at the Tl-site forx⩾0·25; however, Tc is low forx < 0·75.
References
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Journal ArticleDOI
Bulk superconductivity at 120 K in the Tl-Ca/Ba-Cu-O system
Z.Z. Sheng,Allen M. Hermann +1 more
TL;DR: In this paper, stable and reproducible bulk superconductivity with an onset at 120 K and zero resistance above 100 K in the Tl-Ca/Ba-Cu-O system was reported.
Journal ArticleDOI
Superconductivity in the rare-earth-free Tl–Ba–Cu–O system above liquid-nitrogen temperature
Z.Z. Sheng,Allen M. Hermann +1 more
TL;DR: In this paper, the authors reported superconductivity in the rare earth-free TI-Ba-Cu-O system with a resistance starting at 90 K with zero resistance at 81 K.
Journal ArticleDOI
Structures of the superconducting oxides Tl2Ba2CuO6 and Bi2Sr2CuO6.
Charlie C. Torardi,M.A. Subramanian,Joseph C. Calabrese,Jagannatha Gopalakrishnan,Eugene M. McCarron,K. J. Morrissey,T. R. Askew,R.B. Flippen,U. Chowdhry,Arthur W. Sleight +9 more
TL;DR: The Tl-O layers are much more strongly bound to each other than are the Bi-O layer; thus, better conduction along the c axis is expected for Tl/sub 2/Ba/ sub 2/CuO/sub 6/ relative to Bi/sub 1/Sr/sub 3/Cu-O-sub 6/.
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Model family of high-temperature superconductors: TlmCan-1Ba2CunO2(n+1)+m (m=1,2; n=1,2,3).
TL;DR: Variations in the transition temperatures in the double- and triple-CuO/sub 2/-layer compounds are observed to correlate with increased densities of intergrowths of related structures.
Journal ArticleDOI
Structure refinements of superconducting Tl2Ba2CaCu2O8 and Tl2Ba2Cu3O10 from neutron diffraction data.
TL;DR: In this paper, the structure of the Tl-O planes of a single-crystal x-ray-diffraction (x-ray) X-ray diffraction (XRDF) was refined from neutron-powder diffraction data at both 150 and 13 K.