The lateral motion of a magnetic skyrmion, arising because of the skyrmion Hall effect, imposes a number of restrictions on the use of this spin state in the racetrack memory. A skyrmionium is a more promising spin texture for memory applications, since it has zero total topological charge and propagates strictly along a nanotrack. Here, the stability of the skyrmionium, as well as the dependence of its size on the magnetic parameters, such as the Dzyaloshinskii-Moriya interaction and perpendicular magnetic anisotropy, are studied by means of micromagnetic simulations. We propose an advanced method for the skyrmionium nucleation due to a local enhancement of the spin Hall effect. The stability of the skyrmionium being in motion under the action of the spin polarized current is analyzed.

中文翻译：

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Skyrmionium-高速，没有skyrmion霍尔效应。

由于天rm子霍尔效应而引起的磁天ion子的横向运动，在跑道存储器中对该旋转状态的使用施加了许多限制。天蝎座是一种更有前途的自旋纹理，用于存储器应用，因为它的总拓扑电荷为零，并且严格沿着纳米轨道传播。在此，通过微磁模拟研究了rm的稳定性以及size的大小对磁性参数（如Dzyaloshinskii-Moriya相互作用和垂直磁各向异性）的依赖性。由于自旋霍尔效应的局部增强，我们提出了一种先进的方法用于天蝎核的形成。分析了在自旋极化电流的作用下运动的天sky的稳定性。