A What is the significance of tilted vortex lines in superconductor vortexes?

[SeM]

I have read a few parts in various papers where they refer to tiltered vortex lines in superconductor vortexes, however it is not clear what these lines really mean physically. Can anyone suggest a source or a description to this?

Thanks

 

[jedishrfu]

I found these papers that mention them.

https://www.nature.com/articles/srep07598

and this paywall article (I can't see it either)

http://iopscience.iop.org/article/10.1209/0295-5075/13/2/015/meta

and this Japanese article:

https://www.jsap.or.jp/jsapi/Pdf/Number02/Frontier1.pdf

 

[SeM]

Thanks. Still not clear what these lines are, but they seem to be related to the intensity of the electromagnetic field affecting particle vortexes.