Can Doping Graphite Trigger Room Temperature Superconductivity? Evidence for Granular High-Temperature Superconductivity in Water-Treated Graphite Powder
Can Doping Graphite Trigger Room Temperature Superconductivity? Evidence for Granular High-Temperature Superconductivity in Water-Treated Graphite Powder
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DOI：
10.1002/adma.201202219
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发表时间：
2012-11-14
影响因子：
29.4
通讯作者：
Setzer, A.
中科院分区：
文献类型：
--
作者：
Scheike, T.;Boehlmann, W.;Setzer, A.
用纯水处理后，小石墨颗粒(几十微米)粉末中的颗粒超导电性被证明。经处理的石墨粉的温度、磁场和磁矩随时间的变化提供了证据，证明了超导涡旋的存在，这种涡旋与高温颗粒超导氧化物有一些相似之处，但即使在300K以上的温度下，掺杂石墨或其界面处的室温超导似乎也是可能的。
Granular superconductivity in powders of small graphite grains (several tens of micrometers) is demonstrated after treatment with pure water. The temperature, magnetic field and time dependence of the magnetic moment of the treated graphite powder provides evidence for the existence of superconducting vortices with some similarities to high-temperature granular superconducting oxides but even at temperatures above 300 K. Room temperature superconductivity in doped graphite or at its interfaces appears to be possible.