论文标题
抗铁磁性交换耦合纳米磁铁的巨大稳定性
Colossal stability of antiferromagnetically exchange coupled nanomagnets
论文作者
论文摘要
Bistable Nanomagnets存储了二进制信息。交换耦合的纳米磁体可以在低维处提高热稳定性。在这里，我们表明，在低维度上，抗磁性（AFM）偶联的纳米磁体可以高于铁磁性（FM）耦合的纳米磁体的稳定。通过在室温下求解磁化动力学的随机Landau-lifshitz-gilbert方程，我们分析了在存在相关，不相关和反相关噪声的情况下，交换耦合纳米磁铁的稳定性。结果表明，相关噪声可以使AFM耦合纳米磁体的稳定性非常高。这种发现将导致我们未来的信息处理系统中非常高密度的非易失性存储和逻辑设备。
Bistable nanomagnets store a binary bit of information. Exchange coupled nanomagnets can increase the thermal stability at low dimensions. Here we show that the antiferromagnetically (AFM) coupled nanomagnets can be highly stable at low dimensions than that of the ferromagnetically (FM) coupled nanomagnets. By solving stochastic Landau-Lifshitz-Gilbert equation of magnetization dynamics at room temperature, we analyze the stability of the exchange coupled nanomagnets in the presence of correlated, uncorrelated, and anti-correlated noise. The results show that the correlated noise can make the stability of the AFM coupled nanomagnets very high. Such finding will lead to very high-density non-volatile storage and logic devices in our future information processing systems.
