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Digitale Medien

Superconductivity above 100 K in compounds containing Hg (1995)

Osofsky, M. S. ; Lechter, W. L. ; Toth, L. E. ; [weitere]

Springer

Journal of superconductivity 8 (1995), S. 511-514

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Details

ISSN: 1572-9605

Schlagwort(e): superconductivity ; cuprate ; Hg ; Tl

Quelle: Springer Online Journal Archives 1860-2000

Thema: Elektrotechnik, Elektronik, Nachrichtentechnik , Physik

Notizen: Abstract The results of studies of new Hg based cuprate superconductors are reported. Several members of a new family of (Hg,Tl)(Ba,Sr)Can−2CunOx high temperature superconductors have been synthesized. These compounds, which are analogs to the Hg-Ba-Ca- and Tl-Ba-Ca-layered cuprates, are multi-phased and have superconducting transition temperatures above 100 K. Incorporation of Hg appears to stabilize several of the Tl-compounds, including a double layer. Tl/Sr system, in a manner similar to the role that Pb plays in the Tl/Sr- and Bi/Sr-systems. It has been suggested that recent reports of resistive Tc's above 200 K in Hg based samples are due to the presence of free Hg. Magnetization measurements of such a sample confirm this hypothesis.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1007/BF00722843

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