One case in which you can see something similar to SC transition is percolation, where the sample is mix of regular metal and insulator, and you (accidentally)

One case in which you can see something similar to SC transition is percolation, where the sample is mix of regular metal and insulator, and you (accidentally) connect current contacts to metal but voltage probes to insulator [1] [1] https://arxiv.org/abs/1808.05871 https://arxiv.org/abs/1808.05871