Magnetic properties of (Tl 1−xPb x)Sr 2CaCu 2O 7 High- Tc oxide studied by 17O NMR and SQUID: from overdoped superconductor to strongly overdoped metal

We report 17O NMR and SQUID measurements in two overdoped samples of the (Tl 1−xPb x)Sr 2CaCu 2O 7 family with T c =65K (x=0.5) and T c≊0 K ( x=0.2) . The line shift 17 K( T) has been measured for all three, well defined, 17O NMR lines and T 1 T has been studied for oxygen sites in the CuO 2 planes....

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Published inPhysica. C, Superconductivity Vol. 282; pp. 1357 - 1358
Main Authors Bellot, P.-V., Trokiner, A., Zhdonov, Y., Yakubovskii, A., Shustov, L., Verkhovskii, S., Zagoulaev, S., Monod, P.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 1997
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Summary:We report 17O NMR and SQUID measurements in two overdoped samples of the (Tl 1−xPb x)Sr 2CaCu 2O 7 family with T c =65K (x=0.5) and T c≊0 K ( x=0.2) . The line shift 17 K( T) has been measured for all three, well defined, 17O NMR lines and T 1 T has been studied for oxygen sites in the CuO 2 planes. Our results show that contrary to underdoped High- T c materials there is no evident connection between T c variation on increasing doping and the magnetic properties in the normal state.
ISSN:0921-4534
1873-2143
DOI:10.1016/S0921-4534(97)00760-0