ArticleSmall science2024
Reduction of Operating Current by Harnessing the Field- and Damping-Like Torque Ratios in Nonmagnet-Ferromagnet Heterojunctions.
Article in Small science, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
With the growing demand for high-speed electronic devices with low energy consumption, spin-orbit torque (SOT) has become a significant focus. SOT can switch the magnetization direction in a material system with broken inversion symmetry, such as a normal metal (NM)/ferromagnet (FM) heterojunction. The SOT consists of two mutually orthogonal vector components along with the injected current direction: the transverse damping-like torque (DLT) and the longitudinal field-like torque (FLT). Numerous studies have mainly centered on the DLT for the SOT switching mechanism. However, DLT and FLT are essential to enhance SOT efficiency because FLT boosts the magnetization precession motion. Herein, heterojunctions consisting of NM 1 (Ta, W, or Pt)/NM 2 (Nb)/FM (CoFeB) are devised to manipulate the FLT-to-DLT ratio (
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