The spin Hall effect is one of the most relevant effects in spintronics and the key to conversion from charge current into spin current. We report here a phenomenon, which appears in response to the spin Hall effect and represents the anti-polarization of the spin current due to the coupling between interfacial magnetic anisotropies. Such an effect produces a Hermitian spin current. We realized experiments on permalloy (Py) and Cobalt (Co) bilayers to discuss this phenomenon.
@article{arxiv.2211.02334,
title = {Observation of Spin Current Hermiticity},
author = {Wibson W. G. Silva and A. R. Rodrigues and José Holanda},
journal= {arXiv preprint arXiv:2211.02334},
year = {2023}
}