Abstract

Taking into account the difference in the mobilities of electrons with different spin projections, the frequencies of spin-injection radiation in the current-carrying magnetic contact formed by two ferromagnets are calculated. It is shown that these frequencies are in the terahertz range at a certain current density exceeding the threshold value, and the current density required to generate terahertz radiation can be, even at small values of the electron mobility difference, two orders of magnitude less than that in the absence of the electron mobility difference. The effect of the spin polarization ratio of ferromagnets that form a magnetic junction on the radiation frequency is analyzed.

中文翻译：

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磁性结中自旋注入辐射的频率与电子自旋迁移率的关系

摘要

考虑到具有不同自旋投影的电子迁移率的差异，计算了由两个铁磁体形成的载流磁触点中自旋注入辐射的频率。结果表明，在一定的电流密度超过阈值时，这些频率在太赫兹范围内，即使在电子迁移率差很小的情况下，产生太赫兹辐射所需的电流密度也可以比太赫兹小两个数量级。在没有电子迁移率差异的情况下。分析了形成磁性结的铁磁体的自旋极化比对辐射频率的影响。