A ~(89)Y NMR study of Bi_2Sr_2Ca_(1-x)Y_xCu_2O_y ( 0.1 <= x <= 1.0)

A.G. Kontos; Z.P. Han; R. Dupree

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A ~(89)Y NMR study of Bi_2Sr_2Ca_(1-x)Y_xCu_2O_y ( 0.1 <= x <= 1.0)

机译：Bi_2Sr_2Ca_（1-x）Y_xCu_2O_y（0.1 <= x <= 1.0）的〜（89）Y NMR研究

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High resolution ~(89)Y NMR measurements have been carried out to study the effect of Y substitution in Bi_2Sr_2Ca_(1-x)Y_xCu_2O_y. A single resonance line was observed for samples with x >= 0.5, while an additional line was observed for x < 0.5, possible arising from Y which occupies the Sr site. The resonance of the Y on the Ca site shifts diamagnetically upon increasing the carrier concentration and paramagnetically upon reducing the temperature, in close relation with the variation of T_c in the system.

机译：已经进行了高分辨率的〜（89）Y NMR测量，以研究Y取代对Bi_2Sr_2Ca_（1-x）Y_xCu_2O_y的影响。对于x> = 0.5的样品观察到一条共振线，而对于x <0.5的样品观察到另一条共振线，这可能是由于占据Sr位点的Y引起的。与系统中T_c的变化密切相关，随着载流子浓度的增加，Y在Ca位置的共振会反磁性地移动，而在降低温度时会顺磁性地移动。

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《Physica, C. Superconductivity and its applications》 |1999年第0期|共3页
作者
A.G. Kontos; Z.P. Han; R. Dupree;
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正文语种 eng
中图分类超导电性;
关键词
~(89)Y NMR; HBr_2Sr_2CaCu_2O_8; substitution effects; normal state properties;

机译：〜（89）Y NMR;HBr_2Sr_2CaCu_2O_8;取代效应;正态性质;

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A ~(89)Y NMR study of Bi_2Sr_2Ca_(1-x)Y_xCu_2O_y ( 0.1 <= x <= 1.0)

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