New series of Hg-based, (Hg,Cr)Sr2Can-1CunOy (n=2-5) superconductors synthesized under high pressure

被引：0
|
作者：
Kandyel, E [1 ]
Wu, XJ [1 ]
Adachi, S [1 ]
Tajima, S [1 ]
机构：
[1] ISTEC, Superconduct Res Lab, Koto Ku, Tokyo 1350062, Japan
来源：
ADVANCES IN SUPERCONDUCTIVITY XII | 2000年
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中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We succeeded in preparing several members of a new family of (Hg,Cr)Sr2Can-1CunOy superconductors under high-pressure at 6 GPa and 1000 degrees C. The phase formation was confirmed by X-ray and electron diffraction analyses as well as high-resolution electron microscopy. These compounds am tetragonal and analogs to HgBa2Can-1CunOy layerd cuprates with Ba completely substituted by Sr. The first important feature deals with the synthesis of 1212 phase, (Hg,Cr)Sr2CaCu2Oy, without additional elements like Y with T-c of 80 K. The second important point deals with the successful synthesis of higher members (n = 3-5) of this family fm the first time. The highest T-c of 98 K was observed fin (Hg,Cr)-1223 phase.
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页码：119 / 121
页数：3
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