自旋电子学
反铁磁性
磁性
非易失性存储器
范德瓦尔斯力
材料科学
电场
凝聚态物理
磁电阻
纳米技术
磁场
光电子学
化学
铁磁性
物理
量子力学
有机化学
分子
作者
Junhyeon Jo,Samuel Mañas‐Valero,Eugenio Coronado,Fèlix Casanova,Marco Gobbi,Luis E. Hueso
出处
期刊:Nano Letters
[American Chemical Society]
日期:2024-04-08
卷期号:24 (15): 4471-4477
标识
DOI:10.1021/acs.nanolett.4c00348
摘要
van der Waals magnets are emerging as a promising material platform for electric field control of magnetism, offering a pathway toward the elimination of external magnetic fields from spintronic devices. A further step is the integration of such magnets with electrical gating components that would enable nonvolatile control of magnetic states. However, this approach remains unexplored for antiferromagnets, despite their growing significance in spintronics. Here, we demonstrate nonvolatile electric field control of magnetoelectric characteristics in van der Waals antiferromagnet CrSBr. We integrate a CrSBr channel in a flash-memory architecture featuring charge trapping graphene multilayers. The electrical gate operation triggers a nonvolatile 200% change in the antiferromagnetic state of CrSBr resistance by manipulating electron accumulation/depletion. Moreover, the nonvolatile gate modulates the metamagnetic transition field of CrSBr and the magnitude of magnetoresistance. Our findings highlight the potential of manipulating magnetic properties of antiferromagnetic semiconductors in a nonvolatile way.
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