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掺氟对Y-Ba-Cu-O高温超导体电子结构的影响
Y-Ba-Cu-O超导体 氟掺杂 态密度
2008/8/15
采用Recursion方法计算了不同掺氟量和不同替代位置下Y-Ba-Cu-O的电子结构,
从掺氟Y-Ba-Cu-O各晶位的态密度(DOS), 可进一步得到Fermi能EF、
Fermi能级处的态密度N(EF)以及各晶位原子价等重要数据. 各模型的计算
结果表明, 掺入氟后引起CuO2平面上Cu的原子价升高和O的价位变得更负,
使Cu位空穴数目增加和O位空穴数目减少, 且以后者的变化为主. ...
Relationship Among Preparation, Structure and Superconductivity in Ti-Ca-Ba-Cu-O Compounds
Ti-Ca-Ba-Cu-O Compounds Preparation Structure Superconductivity
2010/12/16
Analysis of a comprehensive set of experimental results has proven the substantial effect of the precise preparation conditions upon the structure and superconducting parameters of Ti-Ca-Ba-Cu-O sampl...
Superconducting Thick-Films From a Y-Ba-Cu-O Precursor
thick film super conduction high temperature superconductors
2010/12/16
We have prepared screen-printed films of the Y-Ba-Cu-O compound starting from a spray-pyrolysis precursor powder. BeO ceramic substrates are confirmed to be inert with respect to the film up to about ...
Screen-Printed Superconducting Y-Ba-Cu-O Thick Films on Various Substrates
the Y-Ba-Cu-O system the substrate material the superconducting properties of the films
2010/12/21
Superconducting thick films of the Y-Ba-Cu-O system prepared by screen-printing and sintering on different substrates were investigated to study the effect of the substrate material on the superconduc...