On June 2, Prof. An Hongyu from College of New Materials and New Energies, Shenzhen Technology University (SZTU), published a research article titled “Spin-Torque Manipulation for Hydrogen Sensing” in the top-tier materials science journal Advanced Functional Materials as first author and co-corresponding author. The full text of this article can be found under https://onlinelibrary.wiley.com/doi/full/10.1002/adfm.202002897.
The article is published in Advanced Functional Materials. [Photo/International Cooperation & Student Affairs Office]
The development of spin-orbitronic devices has long been a pursuit in materials science. Through external manipulation of spin-orbit torques (SOTs), the spin-orbitronic technology promises not only energy efficient and fast spin-orbitronic devices but also versatile applications in diverse fields such as magnetic random access memories, spin Hall effect transistors, spin photodetectors, and spin thermoelectric converters. This article studied the application of spin-orbitronic devices as hydrogen sensors, which are vital to detect leaks of hydrogen since it is promising as a clean and non-toxic new energy while hugely inflammable.
It is demonstrated that the spin-torque generation efficiency of a Pd/Ni81Fe19 bilayer can be reversibly manipulated by the absorption and desorption of H2 gas. It is found that compared with the change of the Pd resistance induced by the H2 absorption, the change of the spin-torque generation efficiency is almost an order of magnitude larger. This result provides a new method to externally manipulate the SOTs and paves a way for developing more sensitive hydrogen sensors based on the spin-orbitronic technology.
The cover of Advanced Functional Materials [Photo/onlinelibrary.wiley.com]
Tips: (The information below is cited from the official website of Wiley Online Library.)
Advanced Functional Materials reports breakthrough research in all aspects of materials science, including nanotechnology, chemistry, physics, and biology. The 2018 Journal Impact Factor is 15.621 (Journal Citation Reports (Clarivate Analytics, 2019)).
Drafted by Daisy（姚琦）/ International Cooperation & Student Affairs Office
Edited by International Cooperation & Student Affairs Office