通过干涉隧穿电流耦合的单个TEMPO二聚体的电子自旋光谱学
Electron spin spectroscopy of single TEMPO dimers coupled via interfering tunneling currents
AI总结：
本文利用ESR-STM方法检测单个TEMPO二聚体的电子自旋共振，首次证明经由两个自旋的干涉隧穿是该方法的有效机制，揭示了多峰功率谱源于自旋轨道耦合下的交换与Dzyaloshinskii-Moriya相互作用。
摘要：
我们报告了在稳定自由基2,2,6,6-四甲基哌啶-1-氧基（TEMPO）的单个二聚体中检测到电子自旋共振（ESR）。ESR通过扫描隧道显微镜（ESR-STM方法）中的电流波动进行测量。与宏观数据不同的多峰功率谱，被归因于在自旋轨道耦合存在下具有交换和Dzyaloshinskii-Moriya相互作用的二聚体。在我们的模型中，这些相互作用由从针尖到样品经由二聚体两个分子的干涉电子隧穿路径产生。这是首次证明经由两个自旋的隧穿是ESR-STM方法的有效机制。
英文摘要：
We report the detection of electron spin resonance (ESR) in individual dimers of the stable free radical 2,2,6,6-tetramethyl-piperidine-1-oxyl (TEMPO). ESR is measured by the current fluctuations in a scanning tunnelling microscope (ESR-STM method). The multi-peak power spectra, distinct from macroscopic data, are assigned to dimers having exchange and Dzyaloshinskii-Moriya interactions in presence of spin-orbit coupling. These interactions are generated in our model by interfering electronic tunneling pathways from tip to sample via the dimer's two molecules. This is the first demonstration that tunneling via two spins is a valid mechanism of the ESR-STM method.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
