AI 中文总结
该研究提出SARPES与SARIPES的统一理论框架，基于响应张量利用偏振层析成像重构张量元素，以W(110)表面为例，实现从SARPES计算直接预测SARIPES强度。
AI 中文摘要
我们提出了自旋分辨角分辨光电子能谱（SARPES）及其逆过程（SARIPES）的统一理论框架，将二者置于同等地位处理。该公式基于一个响应张量，其编码了两个过程之间的互易性。我们证明，SARPES计算中的偏振层析成像为重构张量元素提供了系统途径。对称性约束使独立分量的数量显著减少，进而可得到描述自旋反转过程和强度调制的显式表达式。该形式主义以W(110)表面为例进行说明。所得框架提供了表面自旋依赖光跃迁的对称性适配描述，可从SARPES计算直接预测SARIPES强度。
英文摘要
We present a unified theoretical framework for spin- and angle-resolved photoemission spectroscopy (SARPES) and its inverse process (SARIPES), treating both on an equal footing. The formulation is based on a response tensor that encodes the reciprocity between the two processes. We show that polarization tomography within SARPES calculations provides a systematic route for reconstructing the tensor elements. The number of independent components is significantly reduced by symmetry constraints, which in turn allows for explicit expressions describing spin-reversal processes and intensity modulations. The formalism is illustrated for the W(110) surface. The resulting framework provides a symmetry-adapted description of spin-dependent optical transitions at surfaces and enables the direct prediction of SARIPES intensities from SARPES calculations.
Comments27 pages, 7 Figures
