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我们在室温下对La2-xBaxCuO4(x=0.05,0.1,0.125,0.15,0.2)超导系列样品的正电子寿命谱(PAT)进行了测量,分析了正电子湮没机制与超导转变温度之间的关联,并从电子密度转移方面对La2-xBaxCuO4超导样品的转变温度被抑制的原因进行了解释.

In this article, we reported the positron lifetime spectra of La2- xBaxCuO4 with x=0. 05,0. 1,0. 125,0. 15 and 0. 2 at room temperature. The relationship between superconductivity and positron annihilation was discussed emphatically, and the main reason for the suppression of superconductivity transition temperature Tc was considered due to electron density he.

参考文献

[1] 李鹏程,杨宏顺,任治安,柴一晟,曹烈兆.La2-xBaxCuO4-y单晶样品的制备[J].低温物理学报,2001(01):34-38.
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