美国能源部的艾姆斯实验室已经成功地证明了一种新型的光学磁力计/磁强计，即NV磁力计/磁强计，可以映射超导材料的独特特性，连同定义超导本身的零电阻。

Revealing the mysteries of superconductors

https://www.sciencedaily.com/releases/2018/05/180509121541.htm

1. N M Nusran, K R Joshi, K Cho, M A Tanatar, W R Meier, S L Bud’ko, P C Canfield, Y Liu, T A Lograsso, R Prozorov. Spatially-resolved study of the Meissner effect in superconductors using NV-centers-in-diamond optical magnetometry. New Journal of Physics, 2018; 20 (4): 043010 DOI: 10.1088/1367-2630/aab47c