论文标题
斜领域的天空：通往新型二元和第四纪记忆的道路
Skyrmions in an oblique field: A path to novel binary and quaternary memory
论文作者
论文摘要
我们提出了一种基于正方形磁岛倾斜场引起的天际状态的新型二元和第四纪记忆装置。为了描述Skyrmion的稳定状态和动态，我们采用了晶格模型，该模型使用真实材料的参数并解释所有相关相互作用。根据田地的方向，在倾斜场中出现了两个或四个空间分离的能量最小值。最小值之间的能屏障可以通过磁场的强度和方向来控制。我们研究了Skyrmion的动力学，并表明它可以通过应用现场梯度在任何两个状态之间移动。几十原子层厚度的岛屿允许对拟议装置进行室温操纵。
We propose a novel binary and quaternary memory device based upon skyrmion states induced by the oblique field in a square magnetic island. To describe stable states and dynamics of the skyrmion, we employ the lattice model that uses the parameters of a real material and accounts for all relevant interactions. Depending on the orientation of the field, two or four spatially separated energy minima emerge in the oblique field. The energy barriers between the minima can be controlled by the strength and orientation of the magnetic field. We study the dynamics of the skyrmion and show that it can be moved between any two states by application of the field gradient. Islands of thickness of a few tens of atomic layers permit room-temperature manipulation of the proposed device.
