Parametron on magnetic dot: Stable and stochastic operation
Parametron on magnetic dot: Stable and stochastic operation
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DOI：
10.1063/5.0038946
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发表时间：
2021-01-11
影响因子：
4
通讯作者：
Saitoh, Eiji
中科院分区：
文献类型：
--
作者：
Makiuchi, Takahiko;Hioki, Tomosato;Saitoh, Eiji
利用交流自旋抽运和逆自旋霍尔效应研究了磁点中参量激发的磁化动力学。在激发下，具有不同旋进相位的类伊辛态对以可控的方式稳定。结果表明，该点可以作为参数位的载体。在增加激发功率时，观察到状态之间的随机跃迁，并且每个状态的发生概率可以通过附加的微波来调谐，从而打开概率比特操作的应用。
Magnetization dynamics induced by parametric excitation in a magnetic dot has been investigated by using ac spin pumping and inverse spin-Hall effects. An Ising-like pair of states with different precession phases was found to be stabilized in a controllable way under the excitation. The result shows that the dot can be used as a parametron-bit carrier. Upon increasing the excitation power, stochastic transition between the states was observed, and the occurrence probability of each state can be tuned by means of additional microwaves, opening an application to probabilistic bit operation.