辐射自旋热电子学
Radiative Spin Caloritronics
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中文总结 AI 辅助
研究非互易磁光多体系统中的自旋热霍尔效应，通过证明其与逆效应构成互易对建立热和光子自旋耦合通道，利用热力学第二定律得出热自旋品质因数，为光子自旋热电子学建立框架并奠定相关器件概念基础。
中文摘要 AI 辅助
我们预测了非互易磁光多体系统中的自旋热霍尔效应，其中纵向辐射热电流会产生由热光子携带的自旋角动量的横向积累。我们表明，这种效应和逆自旋热霍尔效应构成了一个昂萨格-卡西米尔互易对，从而在非互易光子系统中建立了热和光子自旋作为耦合传输通道。热力学第二定律对自旋-热耦合施加了基本限制，从而得出一个量化辐射自旋-热转换效率的热自旋品质因数。我们的结果为光子自旋热电子学建立了一个完整的热力学框架，并为自旋控制的热辐射和非互易光子热器件奠定了概念基础。
英文摘要
We predict the spin thermal Hall effect in nonreciprocal magneto-optical many-body systems, in which a longitudinal radiative heat current generates a transverse accumulation of the spin angular momentum carried by thermal photons. We show that this effect and the inverse spin thermal Hall effect constitute an Onsager-Casimir reciprocal pair, thereby establishing heat and photon spin as coupled transport channels in nonreciprocal photonic systems. The second law of thermodynamics imposes fundamental bounds on the spin-heat coupling, leading to a thermal-spin figure of merit that quantifies the efficiency of radiative spin-heat conversion. Our results establish a complete thermodynamic framework for photon spin caloritronics and lay the conceptual foundations for spin-controlled thermal radiation and nonreciprocal photonic thermal devices.
