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首页> 外文期刊>Crystallography reports >Soliton mechanism of the uranium nitride microdynamics and heat conductivity at high temperatures
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Soliton mechanism of the uranium nitride microdynamics and heat conductivity at high temperatures

机译：高温下氮化铀微观动力学和热导率的孤子机理

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摘要

The microdynamics of soliton waves and localized modes of nonlinear acoustic and optical oscillations in uranium nitride has been investigated. It is shown that, upon heating, the energies of solitons in the gap between the optical and acoustic phonon bands increase, while the energies of local modes decrease. The experimentally observed quasi-resonance features, which are shifted in the gap with a change in temperature, can be manifestations of the revealed soliton waves and local modes. The microdynamics of uranium nitride heat conductivity with the stochastic generation of the observed solitons and local modes at remote energy absorption have been investigated. The temperature dependence of the heat conductivity coefficient has been determined from the temperature gradient and energy flux within the standard approach (which is to be generalized).
机译：已经研究了氮化铀中孤子波的微动力学以及非线性声和光振荡的局域模。结果表明，在加热时，光声带和声子带之间的间隙中的孤子能量增加，而局部模式的能量减少。实验观察到的准谐振特征随温度的变化而在缝隙中移动，可以表现为所揭示的孤子波和局部模式。研究了氮化铀热导率随所观察到的孤子的随机产生以及在远距离能量吸收处的局部模式的微观动力学。导热系数的温度依赖性已由标准方法（将要推广）中的温度梯度和能量通量确定。

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