TY - JOUR
T1 - Spin-Torque Manipulation for Hydrogen Sensing
AU - An, Hongyu
AU - Haku, Satoshi
AU - Kageyama, Yuito
AU - Musha, Akira
AU - Tazaki, Yuya
AU - Ando, Kazuya
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers 19H00864, 26220604, 26103004, the Canon Foundation, the Asahi Glass Foundation, JGC‐S Scholarship Foundation, Spintronics Research Network of Japan (Spin‐RNJ), the JSPS Fellowship (Grant Number 17F17066), Guangdong Basic and Applied Basic Research Foundation (Grant No. 2019A1515110230), Natural Science Foundation of Top Talent of SZTU (Grant No. 2019208), and the Featured Innovation Project of the Educational Commission of Guangdong Province of China (Grant No. 2019KTSCX203).
Funding Information:
This work was supported by JSPS KAKENHI Grant Numbers 19H00864, 26220604, 26103004, the Canon Foundation, the Asahi Glass Foundation, JGC-S Scholarship Foundation, Spintronics Research Network of Japan (Spin-RNJ), the JSPS Fellowship (Grant Number 17F17066), Guangdong Basic and Applied Basic Research Foundation (Grant No. 2019A1515110230), Natural Science Foundation of Top Talent of SZTU (Grant No. 2019208), and the Featured Innovation Project of the Educational Commission of Guangdong Province of China (Grant No. 2019KTSCX203).
Publisher Copyright:
© 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7/1
Y1 - 2020/7/1
N2 - External manipulation of spin-orbit torques (SOTs) promises not only energy-efficient spin-orbitronic devices but also versatile applications of spin-based technologies in diverse fields. However, the external electric-field control, widely used in semiconductor spintronics, is known to be ineffective in conventional metallic spin-orbitronic devices due to the very short screening length. Here, an alternative approach to control the SOTs by using gases is shown. 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, which appears concomitantly with the change of the electrical resistance. 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.
AB - External manipulation of spin-orbit torques (SOTs) promises not only energy-efficient spin-orbitronic devices but also versatile applications of spin-based technologies in diverse fields. However, the external electric-field control, widely used in semiconductor spintronics, is known to be ineffective in conventional metallic spin-orbitronic devices due to the very short screening length. Here, an alternative approach to control the SOTs by using gases is shown. 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, which appears concomitantly with the change of the electrical resistance. 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.
KW - hydrogen sensing
KW - spin-orbit torque
KW - spin-orbitronics
KW - spin-torque ferromagnetic resonance
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U2 - 10.1002/adfm.202002897
DO - 10.1002/adfm.202002897
M3 - Article
AN - SCOPUS:85085696912
VL - 30
JO - Advanced Functional Materials
JF - Advanced Functional Materials
SN - 1616-301X
IS - 30
M1 - 2002897
ER -