2D Cr₂ O₃ -CrN 马赛克异构结构的生长与可调节的室温铁磁

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Liqiong He¹, Huiyu Nong¹, Junyang Tan¹

¹Shenzhen Geim Graphene Center, Tsinghua-Berkeley Shenzhen Institute & Institute of Materials Research, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, P. R. China.

Advanced materials (Deerfield Beach, Fla.)

|July 24, 2023

概括

研究人员开发了稳定的2D氧化-化 (Cr2O3-CrN) 马赛克异构结构,具有可调节的室温铁磁. 这一突破为先进的自旋电子设备提供了潜力.

科学领域:

材料科学材料科学材料科学
凝聚物质物理学凝聚物质物理学
纳米技术纳米技术

背景情况:

二维 (2D) 磁铁对于下一代自旋电子设备至关重要.
制造具有可控性质的2D铁磁异构结构仍然是一个重大挑战.
探索新的二维磁性材料和异构结构对于推进自旋电子学至关重要.

研究的目的:

开发一种简单的方法来合成稳定的2D室温铁磁异构结构.
为了研究Cr2O3-CrN马赛克异构结构 (MHs) 的可调节磁性特性.
探索这些MHS在高温自旋电子应用中的潜力.

主要方法:

一化学蒸汽沉积 (CVD) 用于种植2D Cr2O3-CrN MHs.
在生长过程中控制 CrN:Cr2O3 比率的调整.
合成的 MHs 的结构性,磁性和稳定性特性.

主要成果:

成功合成了可调节的CrN:Cr2O3比率 (0-100%) 的稳定的2D Cr2O3-CrN MHs.
证明了强大的室温铁磁性,源于接口合,具有可调节的和磁化和强制场.
在高温和克里度温度超过400K的情况下证实了空气稳定性.

结论:

已经建立了一种新且简单的方法来制造具有可调节磁性的2D磁性异构结构.
合成的Cr2O3-CrN MHs对高温自旋电子应用具有有前途的性能.
这项工作为开发使用二维磁性材料的先进自旋电子设备铺平了道路.

关键词:

2D 马赛克异构结构克里度温度克里度温度空气稳定的材料.化学蒸气沉积化学蒸气沉积铁磁主义是一种铁磁主义.

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Ferromagnetism

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