用于高动感电感和低损耗量子器件的颗粒超导体
超导电性
2020-08-12 v1
摘要
颗粒铝是一种有前景的高动感电感器件(如量子比特电路)材料。与原子无序材料(如NbN_x)相比，其优势在于同时保持高动感电感和高品质因子。我们展示了高质量的纳米级颗粒铝薄膜，具有尖锐的超导转变，正常态电阻率值约为1x10^5 μΩ cm，动感电感值约为10 nH/sq，超越了现有技术水平。我们认为这是由于金属-绝缘体转变的不同性质所致：前者是电子关联驱动的(Mott型)，后者是无序驱动的(Anderson型)。
引用
@article{arxiv.2008.02860,
title = {Granular superconductors for high kinetic inductance and low loss quantum devices},
author = {Aviv Glezer Moshe and Eli Farber and Guy Deutscher},
journal= {arXiv preprint arXiv:2008.02860},
year = {2020}
}
备注
The following article has been accepted by Applied Physics Letters. After it is published, it will be found at http://apl.aip.org/