Some peculiarities of proton transport in quasi-one-dimensional hydrogen-bonded chains
Some peculiarities of proton transport in quasi-one-dimensional hydrogen-bonded chains
复制标题
准一维氢键链中质子传输的一些特性
DOI：
10.1063/1.481464
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发表时间：
1999
影响因子：
4.4
通讯作者：
N. Pavlenko
中科院分区：
文献类型：
--
作者：
N. Pavlenko
在两阶段输运模型的框架下，从理论上研究了氢键链中的质子电导。考虑了与光学声子拉伸模的强相互作用。从跃迁电导率的温度依赖关系出发，我们得到了声子诱导的绝缘体到金属型的相变行为，并分析了特殊的格洛特斯机制对相变特性的影响。我们还研究了由于上述质子沿链迁移的两阶段机制而出现的带和跳跃电导部分的频率依赖性的主要特征。
The protonic conductivity in the hydrogen-bonded chains is investigated theoretically in the framework of the two-stage transport model. The strong interactions with optical phonon stretching mode are considered. We obtain the phonon-induced transition from the insulator to the metal-type behavior from the temperature dependencies of the hopping conductivity and analyze the influence of the specific Grotthuss mechanism on the transition character. We investigate also the main peculiarities in the frequency dependencies of the band and hopping conductivity parts which appear due to above-mentioned two-stage mechanism of the proton migration along the chain.