This paper applies not only to neurons but to some types of associative memory (AM):
https://arxiv.org/pdf/1710.11227.pdf
Since conspiracy theories are all the rage these days it seems that some early papers on cryogenic magnetic associative memory from the 1960’s have disappeared from archive.org.
Including plans to build 1 million element AM, a massive number in those days when digital computers had only a few kilobytes of memory.
It is a real pity the early AM research was dropped, ignored and lost through the 1970’s, 1980’s and onward.