Synthesis of new electron-doped cuprates LixSr2CuO2X2 (X= Cl, Br, I)

被引：0
|
作者：
Kajita, Tetsuya [1 ,2 ]
Kato, Masatsune [1 ,2 ]
Noji, Takashi [1 ,2 ]
Koike, Yoji [1 ,2 ]
机构：
[1] Tohoku Univ, Dept Appl Phys, Aoba Ku, 6-6-05 Aoba, Sendai, Miyagi 9808579, Japan
[2] Japan Sci & Technol, CREST, Sendai, Miyagi, Japan
来源：
LOW TEMPERATURE PHYSICS, PTS A AND B | 2006年 / 850卷
关键词：
superconductor; Li-intercalation; electron-doping; LixSr2CuO2X2; (X; Cl; Br; I);
D O I：
暂无
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
We have successfully synthesized a new electron-doped superconducting cuprate LixSr2CuO2I2 by the electrochemical Li-intercalation technique. The electrochemical intercalation was carried out at room temperature under a constant potential of 500 mV vs. Li/Li+ using a three-elecrode cell. It has been found that Li+ ions tend to be intercalated readily with the increase of the ionic radius of X- in Sr2CuO2X2 (X = Cl, Br, I). The magnetic susceptibility measurements have revealed the appearance of superconductivity with the superconducting transition temperature T-c = 4.5 K in Li0.25Sr2CuO2I2, which is lower than T-c = 8.0 K in Li0.15Sr2CuO2Br2.
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页码：535 / +
页数：2
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