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arXiv 0911.0571cond-mat.mes-hall
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单分子晶体管输运中的Dzyaloshinskiii-Moriya相互作用

Dzyaloshinskii-Moriya interaction in transport through single molecule transistors

S. Herzog, M. R. Wegewijs

摘要:

Dzyaloshinskiii-Moriya相互作用的结果表明,在一个单分子晶体管的自旋倾斜。我们预测的非线性传输签名的自旋轨道耦合的分子二聚体的一般情况下,这种效果。使用主方程计算的电导,并发现表现出非平凡的依赖于外部磁场的大小和方向。我们展示了如何三端传输测量允许确定的耦合矢量特征的Dzyaloshinskiii-Moriya相互作用。特别是,我们展示了它的方向,定义分子内的自旋手性,可以探测铁磁电极。

英文摘要:

The Dzyaloshinskii-Moriya interaction is shown to result in a canting of spins in a single molecule transistor. We predict non-linear transport signatures of this effect induced by spin-orbit coupling for the generic case of a molecular dimer. The conductance is calculated using a master equation and is found to exhibit a non-trivial dependence on the magnitude and direction of an external magnetic field. We show how three-terminal transport measurements allow for a determination of the coupling-vector characterizing the Dzyaloshinskii-Moriya interaction. In particular, we show how its orientation, defining the intramolecular spin chirality, can be probed with ferromagnetic electrodes.

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。

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