Low-dimensional nanostructures are expected to play an important role in spintronics. However, in low-dimensional systems, thermal fluctuations become more significant, which makes long-range magnetic ordering thermodynamically unfavorable. For example, as predicted by the Ising model, 1D magnetic order cannot survive, even at an arbitrary low finite temperature. In this study, utilizing a nanoproximity effect, we design a MoS₂ nanoribbon material to stabilize 1D magnetic order without requiring the explicit application of an external magnetic field. The designed MoS₂ nanoribbon has a new edge-reconstruction pattern, which is much more stable than previously reported structures. As a novel electronic property, one edge is nonmagnetic but conductive, and the opposite edge contains a magnetic moment in the predicted reconstruction pattern. Therefore, a bias voltage can drive a current along the former edge, which then generates a magnetic field at the opposite edge to stabilize the 1D magnetic order there. This result opens a new avenue to realize the integrated electrical control of magnetism.

中文翻译：

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通过偏置电压在边缘重建的MoS2纳米带中稳定的一维磁阶。

低维纳米结构有望在自旋电子学中发挥重要作用。但是，在低维系统中，热波动变得更加明显，这使长距离磁排序在热力学上不利。例如，根据伊辛（Ising）模型预测，即使在任意低的有限温度下，一维磁阶也无法幸免。在这项研究中，利用纳米邻近效应，我们设计了MoS ₂纳米带材料来稳定一维磁阶，而无需明确施加外部磁场。设计的MoS ₂纳米带具有新的边缘重建模式，比以前报道的结构稳定得多。作为一种新颖的电子属性，一个边缘是非磁性的，但具有导电性，而另一边缘则在预测的重构模式中包含磁矩。因此，偏置电压可以沿前一个边缘驱动电流，然后在相对的边缘上产生磁场以稳定一维磁阶。这一结果为实现磁性的集成电控制开辟了一条新途径。