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arXiv 0904.4093cond-mat.dis-nncond-mat.str-el
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电子玻璃中的电导弛豫;微波对红外响应

Conductance relaxation in the Electron-Glass; Microwaves versus infra-red response

Z. Ovadyahu

摘要:

本文研究了微波和红外波段电磁辐射激发下电子玻璃的电导随时间的变化。在任一种情况下,电导G在曝光期间增强,但其在辐射关闭后的时间依赖性根据频率而定性地不同。为了比较,还示出了由栅极电压和温度变化产生的激励的结果。该系统的玻璃性质使我们能够证明,MW增强的电导是由于加热。这些研究结果进行了讨论的能量E_{c},其特征在于电子玻璃的平衡电荷分布。

英文摘要:

We study the time-dependent conductance of electron-glasses excited by electromagnetic radiation at microwaves (MW) and infra-red frequencies. In either case the conductance G is enhanced during exposure but its time dependence after the radiation is turned off is qualitatively different depending on the frequency. For comparison, results of excitation produced by a gate-voltage and temperature changes are also shown. The glassy nature of the system allows us to demonstrate that the MW-enhanced conductance is not due to heating. These findings are discussed in terms of an energy E_{c} that characterizes the equilibrium charge distribution of the electron-glass.

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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