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arXiv 0905.0281cond-mat.mtrl-sci
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Mn12分子的磁态电读出

Magnetic state electrical readout of Mn12 molecules

C. D. Pemmaraju, I. Rungger, S. Sanvito

摘要:

我们证明了Mn 12分子的不同磁性状态可以在两探针传输实验中从电流-电压曲线的完整知识中区分出来。我们的结果,得到与最先进的非平衡输运方法结合密度泛函理论,表明自旋组态特定的负微分电阻(NDRs)出现在I-V曲线。这些起源于电子局域化和分子水平在外部电场中的再杂交之间的相互作用,并允许检测分子的自旋状态。

英文摘要:

We demonstrate that the different magnetic states of a Mn12 molecule can be distinguished in a two-probe transport experiment from a complete knowledge of the current-voltage curve. Our results, obtained with state-of-the-art non-equilibrium transport methods combined with density functional theory, demonstrate that spin configuration-specific negative differential resistances (NDRs) appear in the I-V curves. These originate from the interplay between electron localization and the re-hybridization of the molecular levels in an external electric field and allow the detection of the molecule's spin-state.

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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