Performing of Spin‐Dependent Diodes in Co‐Doped SiC Bilayer by Fully Epitaxial Magnetic Tunnel Junctions

IF 2.9 4区 工程技术 Q1 MULTIDISCIPLINARY SCIENCES Advanced Theory and Simulations Pub Date : 2025-03-14 DOI:10.1002/adts.202401455
Xingkun Liang, Zhengxin Yan, Juntao Kong, Zehua Zhao, Jinghua Zhao, Yu Wang, Chen Qi, Zhaoqi Wang
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Abstract

The switching mechanisms of a spin current diode induced by an alternating electric field are investigated within fully epitaxial magnetic tunnel junctions (TJs) composed of a SiC double layer. This is achieved through precise engineering of the spatial positions of Co atoms, within which the spin‐diode tunneling process, driven by a bias voltage (BV), is carefully explored. This work reveals that incorporating high‐spin Co atoms into the SiC‐Co junction forms a spin‐down domain wall, thereby facilitating spin filtering. Meanwhile, the freedom of spin‐electron transmission governed by the TJ in a spin‐polarized heterojunction is confirmed. These findings demonstrate that the characteristics of the spin‐charge current can be significantly manipulated by adjusting the position of Co atoms in devices and by varying the applied BV, providing valuable insights for the development of spintronic devices.

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来源期刊
Advanced Theory and Simulations
Advanced Theory and Simulations Multidisciplinary-Multidisciplinary
CiteScore
5.50
自引率
3.00%
发文量
221
期刊介绍: Advanced Theory and Simulations is an interdisciplinary, international, English-language journal that publishes high-quality scientific results focusing on the development and application of theoretical methods, modeling and simulation approaches in all natural science and medicine areas, including: materials, chemistry, condensed matter physics engineering, energy life science, biology, medicine atmospheric/environmental science, climate science planetary science, astronomy, cosmology method development, numerical methods, statistics
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