论文标题
Skyrmion螺旋：量化和量子隧道效应
Skyrmion Helicity: Quantization and Quantum Tunneling Effects
论文作者
论文摘要
我们得出了固态中磁性螺旋度的量化，并展示了可调的宏观量子隧穿，连贯性和振荡，以稳定在沮丧的磁铁中的天气旋转质地。我们还讨论了实现量子效应的参数空间。通常，对于5 nm半径的天空，在两个具有不同螺旋的宏观状态之间进行量子隧穿，在低于100 mk以下的偏移率下发生，并且在MHz状态下的能量分开。磁性旋转集合的量子隧穿的可行性激发了利用拓扑保护的手性旋转构型的新平台，用于量子操作。
We derive the quantization of magnetic helicity in the solid-state and demonstrate tunable macroscopic quantum tunneling, coherence, and oscillation for a skyrmion spin texture stabilized in frustrated magnets. We also discuss the parameter space for the experimental realization of quantum effects. Typically, for a skyrmion of 5 nm radius, quantum tunneling between two macroscopic states with distinct helicities occurs with an inverse escape rate within seconds below 100 mK, and an energy splitting in the MHz regime. Feasibility of quantum tunneling of an ensemble of magnetic spins inspires new platforms for quantum operations utilizing topologically protected chiral spin configurations.
