arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1102.2798cond-mat.mes-hallcond-mat.str-el
收藏

单分子磁体输运中自旋和振动的相互作用

Interaction of spin and vibrations in transport through single-molecule magnets

F. May, M. R. Wegewijs, W. Hofstetter

摘要:

我们研究了线性电子输运通过单分子磁体(SMM)和它的各向异性自旋与分子的量子化振动畸变的相互作用。我们发现,尽管存在纵向各向异性势垒和较小的横向各向异性,振动涨落仍然可以诱导量子自旋隧穿(QST)和QST-近藤效应。自旋散射、QST和分子振动的相互作用可以强烈地增强近藤效应,并引起振动近藤边带的异常磁场依赖性。

英文摘要:

We study linear electron transport through a single-molecule magnet (SMM) and the interplay of its anisotropic spin with quantized vibrational distortions of the molecule. We show that, despite the longitudinal anisotropy barrier and small transverse anisotropy, vibrational fluctuations can induce quantum spin-tunneling (QST) and a QST-Kondo effect. The interplay of spin scattering, QST and molecular vibrations can strongly enhance the Kondo effect and induce an anomalous magnetic field dependence of vibrational Kondo side-bands.

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。

↑