Spin caloritronics opens up a wide range of potential applications, one of which can be the thermoelectric rectification of a microwave signal by spin-diode structures. The bolometric properties of a spin-torque diode based on a magnetic tunnel junction (MTJ) in the presence of a thermal gradient through a tunnel junction are discussed. Theoretical estimates of the static and dynamic components of the microwave sensitivity of the spin-torque diode, related to thermoelectric tunnel magneto-Seebeck effect and the thermal transfer of spin angular momentum in the MTJ under nonuniform heating, are presented. Despite the fact that the thermal contribution to the microwave sensitivity of the spin-torque diode is found to be relatively small in relation to the rectification effect related to the modulation of the MTJ resistance by a microwave spin-polarized current, nevertheless, the considered bolometric effect can be successfully utilized in some real-world microwave applications.

中文翻译：

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基于磁性隧道结的自旋扭矩二极管的热辐射特性

自旋热电子学开辟了广泛的潜在应用，其中之一可以是通过自旋二极管结构对微波信号进行热电整流。讨论了在存在通过隧道结的热梯度的情况下基于磁隧道结 (MTJ) 的自旋扭矩二极管的辐射热特性。介绍了自旋扭矩二极管微波灵敏度的静态和动态分量的理论估计，与热电隧道磁塞贝克效应和非均匀加热下 MTJ 中自旋角动量的热传递有关。