Journal ArticleDOI
A model for the superstructure of Bi2Sr2CaCu2O8.2
TLDR
In this paper, a model for the superstructure of Bi 2 Sr 2 CaCu 2 O 8.2 was proposed, which involves the addition of one in ten oxygen atoms in the BiO planes and a displacement of the surrounding atoms.Abstract:
A model is proposed for the superstructure of Bi 2 Sr 2 CaCu 2 O 8.2 . It involves the addition of one in ten oxygen atoms in the BiO planes and a displacement of the surrounding atoms. This model is consistent with electron microscope, neutron and X-ray diffraction data. In particular it is consistent with the symmetry determined by convergent beam electron diffraction and with details of the high resolution electron microscope image contrast.read more
Citations
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Structural modulation and superconducting properties in Bi2-xPbxSr2CaCu2O8+d and Bi2-yPbySr2YCu2O8+d
TL;DR: In this article, changes in the structural modulation and the superconducting properties were examined in Bi 2- x Pb x Sr 2 CaCu 2 O 8+ d and Bi 2 - y Pb y Sr 2 YCu 2O 8+d systems, the b-axis decreased and the periodicity of the structur al modulation along the b -axis increased with increasing Pb content.
Journal ArticleDOI
Structure and properties of (Bi, Pb)2Sr2(Ca, Y)Cu2O8+δ
Henny W. Zandbergen,Wilhelm A. Groen,Wilhelm A. Groen,A. Smit,A. Smit,G. van Tendeloo,G. van Tendeloo +6 more
TL;DR: In this article, the balance between the Pb-type and Bi-type modulation is very delicate, and probably depends on the distribution of the excess oxygen in the two (Bi, Pb)O layers.
Journal ArticleDOI
Dependence of Tc of Bi2Sr2CaCu2O8+x on high temperature cycling and oxygen stoichiometry
J. Zhao,Mohindar S. Seehra +1 more
TL;DR: In this article, a strong correlation of the superconducting transition temperature T c with the weight loss during thermal cycling and annealing of Bi 2 Sr 2 CaCu 2 O 8+ x is reported.
Journal ArticleDOI
Relationships between composition, oxygen non-stoichiometry, structure modulation and superconductivity in the “2212” bismuth cuprates
TL;DR: In this paper, the correlation between critical temperature, modulation vector q and oxygen non-stoichiometry have been studied for three series of compositions belonging to the 2212 bismuth cuprates.
References
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Journal ArticleDOI
Crystal substructure and physical properties of the superconducting phase Bi4(Sr,Cr)6Cu4O16+x.
Jean-Marie Tarascon,Y. Le Page,P. Barboux,B. G. Bagley,Laura Greene,W. R. McKinnon,G. W. Hull,M. Giroud,D. M. Hwang +8 more
TL;DR: A high-T/sub c/ phase in the Bi-Sr-Ca-Cu-O system of composition with similarities to both the oxygen-defect perovskites YBa/sub 2/Cu/sub 3/O/sub 7/..sqrt../sub x/ is isolated and the Meissner effect is due to a superconducting transition.
Journal ArticleDOI
Structure and physical properties of single crystals of the 84-K superconductor Bi 2.2 Sr 2 Ca 0.8 Cu 2 O 8+δ
Steven A. Sunshine,Theo Siegrist,Lynn Schneemeyer,Donald W. Murphy,Robert J. Cava,Bertram Batlogg,R. B. van Dover,R. M. Fleming,S. H. Glarum,S. Nakahara,Reginald C. Farrow,J. J. Krajewski,S. M. Zahurak,Joseph V. Waszczak,J. H. Marshall,P. Marsh,L. W. Rupp,W. F. Peck +17 more
TL;DR: La structure a des plans [CuO 2 ] ∞ separes par des atomes de calcium, des couches doubles d'oxyde de bismuth and a un niveau incommensurable le long de b avec une periode de 4,76
Journal ArticleDOI
Models for the modulation in A2B2CanCu1+nO6+2n, A, B=Bi, Sr OR Tl, Ba and n=0, 1, 2
TL;DR: In this paper, a number of models for the modulation in the title compounds are postulated and the best agreement with experimental data is obtained for the model with extra oxygen in the BiO layers.
Journal ArticleDOI
The Incommensurate Modulation of the 2212 Bi-Sr-Ca-Cu-O Superconductor
TL;DR: A newly discovered feature of the Bi2Sr3-xCaxCu2O8+y structure is sizable Cu displacement, which is related to static wave formation in the Cu-O sheets, which gives evidence that similar distortions occur on cooling of the thallium-containing superconductors.