Electrostatic tuning of the superconductor-insulator transition in two dimensions.
Electrostatic tuning of the superconductor-insulator transition in two dimensions.
复制标题
二维超导体-绝缘体转变的静电调谐。
DOI：
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发表时间：
2005
影响因子：
8.6
通讯作者：
Allen M Goldman
中科院分区：
文献类型：
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作者：
K. Parendo;K. H. S. B. Tan;Anand Bhattacharya;M. Eblen;Neal Staley;Allen M Goldman
利用电场效应在非晶态铋绝缘超薄膜中诱导超导电性。发现电子-电子相互作用的屏蔽随着电子浓度的增加而增加，这种方式与超导的趋势有关。这并不排除态密度的增加在超导发展中是重要的。超导体-绝缘体的转变似乎属于三维XY模型的普适类。
Superconductivity has been induced in insulating ultrathin films of amorphous bismuth using the electric field effect. The screening of the electron-electron interaction was found to increase with electron concentration in a manner correlated with the tendency towards superconductivity. This does not preclude an increase in the density of states being important in the development of superconductivity. The superconductor-insulator transition appears to belong to the universality class of the three dimensional XY model.