论文标题
热噪声对铁磁异常的磁化切换约瑟夫森连接
Thermal noise effects on the magnetization switching of a ferromagnetic anomalous Josephson junction
论文作者
论文摘要
我们讨论了热噪声对旋转轨道耦合和平面外磁化的侧面铁磁孔连接的磁反应的影响。铁磁层中磁矩的方向可以通过使用受控的电流脉冲倒置。这种现象是由于磁电效应构成了流动电流电流和铁磁体的磁化。我们研究了铁磁体的磁化反转效应与固有参数，例如旋转轨道耦合的吉尔伯特阻尼和强度。我们估计磁化反向时间，并找到快速切换参数的最佳值。为了提高操作温度，我们研究了热波动对平均静止磁化的影响，并找到使系统更强大的噪声的条件。
We discuss the effects of thermal noise on the magnetic response of a lateral ferromagnetic Josephson junction with spin-orbit coupling and out-of-plane magnetization. The direction of the magnetic moment in the ferromagnetic layer can be inverted by using controlled current pulses. This phenomenon is due to the magnetoelectric effect that couples the flowing charge current and the magnetization of the ferromagnet. We investigate the magnetization reversal effect versus intrinsic parameters of the ferromagnet, such as the Gilbert damping and strength of the spin-orbit coupling. We estimate the magnetization reversing time and find the optimal values of the parameters for fast switching. With the aim of increasing the operation temperature we study the effects induced by thermal fluctuations on the averaged stationary magnetization, and find the conditions that make the system more robust against noise.
