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arXiv 1505.04529cond-mat.supr-concond-mat.str-el
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远高于平衡Tc的K3C60中的光激发类超导相

An optically stimulated superconducting-like phase in K3C60 far above equilibrium Tc

M. Mitrano, A. Cantaluppi, D. Nicoletti, S. Kaiser, A. Perucchi, S. Lupi, P. Di Pietro, D. Pontiroli, M. Riccò, A. Subedi, S. R. Clark, D. Jaksch, A. Cavalleri

摘要:

复杂固体中非平衡现象的控制是一个重要的研究前沿,包括光致超导等新效应。在这里,我们表明,相干光激发的分子振动的有机导体K3C 60可以诱导一个非平衡态的超导体的光学性质。在远高于平衡温度Tc=20 K的基础温度下,测量了电导率实部的瞬态间隙和虚部的低频发散。这些发现强调了相干光场在诱导出现秩序中的作用。

英文摘要:

The control of non-equilibrium phenomena in complex solids is an important research frontier, encompassing new effects like light induced superconductivity. Here, we show that coherent optical excitation of molecular vibrations in the organic conductor K3C60 can induce a non-equilibrium state with the optical properties of a superconductor. A transient gap in the real part of the optical conductivity and a low-frequency divergence of the imaginary part are measured for base temperatures far above equilibrium Tc=20 K. These findings underscore the role of coherent light fields in inducing emergent order.

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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