由载体兴奋剂操纵的Janus VSeTe单层的电子结构和磁热特性
Yue Yang1, Shuai-Kang Zhang1, Jun-Kang Jiang1
1Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065, China.
Physical chemistry chemical physics : PCCP
|January 20, 2026
概括
简斯VSeTe单层,一个2D铁磁材料,可以通过载体兴奋剂调整为半金属,通过载体兴奋剂实现100%的旋转极化. 这种材料由于其高磁性异构性和基里温度,显示出用于自旋电子设备的潜力.
科学领域:
- 凝聚物质物理学 凝聚物质物理学
- 材料科学 材料科学 材料科学
- 这就是Spintronics.
背景情况:
- 二维 (2D) 铁磁材料对于先进的磁性存储设备至关重要.
- 高磁性晶体异性质能量和基里温度是这些材料的关键性质.
研究的目的:
- 为了研究Janus VSeTe单层的电子和磁性特性.
- 探索载体度对其特性对潜在的自旋电子应用的影响.
主要方法:
- 第一原则计算.第一原则计算.
- 蒙特卡洛的模拟.
- 在不同的载体度下对晶体结构,电子和磁性质的系统研究.
主要成果:
- 雅努斯VSeTe单层过渡到100%的旋极半金属与载体兴奋剂.
- 实现了高磁性晶体异构能量 (1157.72 μeV) 和可调节的磁轴.
- 证明了高的基里温度 (454 K,通过孔 doping 升至510 K) 和显著的山谷分裂 (86 meV,升至110 meV).
- 低歇斯底里斯损失和强制性 (0.13 T) 表明反应迅速.
结论:
- 雅努斯VSeTe单层显示出用于自旋电子设备的极佳潜力.
- 载体兴奋剂是一种优化其磁性和电子性能的有效策略.
- 提供实验实现的理论基础.
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