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arXiv 1105.0984cond-mat.dis-nn
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无序玻璃绝缘体特征弛豫时间的测定及其意义

Determination of characteristic relaxation times and their significance in glassy disordered insulators

Thierry Grenet, Julien Delahaye

摘要:

我们重新审视了场效应的程序,用于模拟玻璃安德森绝缘体的慢动力学。结果表明,在最慢的系统中,该过程失败,提取的“特征”时间值不是固有的,而是由实验过程本身确定的。在其他情况下(如轻掺杂氧化铟),可以获得有关动力学的定性指标,但是提取的时间不能被视为系统的特征弛豫时间以任何简单的方式,更完整的实验是必要的。关于载流子浓度对玻璃化的出现的影响的影响进行了简要概述。

英文摘要:

We revisit the field effect procedure used to characterise the slow dynamics of glassy Anderson insulators. It is shown that in the slowest systems the procedure fails and the "characteristic" time values extracted are not intrinsic but determined by the experimental procedure itself. In other cases (like lightly doped indium oxide) qualitative indications about the dynamics might be obtained, however the times extracted cannot be seen as characteristic relaxation times of the system in any simple manner, and more complete experiments are necessary. Implications regarding the effect of carrier concentration on the emergence of glassiness are briefly outlined.

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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