Spin-polarized current direction restricted to 1 direction in thallium-lead alloy single-atom layer irradiated with light

https://www.eurekalert.org/news-releases/1069799

"light interacts with single-atom layer of metal alloys, enabling more environmentally friendly data storage, ultra-fine 2D spintronics,... spin-polarized current direction restricted to 1 direction in thallium-lead alloy single-atom layer irradiated at room temperature... circular photogalvanic effect:: light conversion to spin-polarized current, where electron spins align in 1 direction depending on light polarization... ultra-high vacuum avoids adsorption/ oxidation revealing its true colors”