Evidences of pure spin current are indistinguishable from those of many parasitic effects. Proper choices of materials and methods are essential for exploring pure spin current phenomena and devices.
Cite
@article{arxiv.1804.01392,
title = {Evidence of pure spin current},
author = {Weiwei Lin and C. L. Chien},
journal= {arXiv preprint arXiv:1804.01392},
year = {2018}
}