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Study of the sticking of a hydrogen atom on a graphite surface using a mixed classical-quantum dynamics method

机译:用混合经典量子动力学方法研究氢原子在石墨表面的粘附

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The sticking of one hydrogen atom chemisorbed on the (0001) graphite surface is investigated using a mixed classical-quantum method. The phonon modes of the system in the collinear scattering approach are included in the dynamics calculations. The vibrational degrees of freedom of the surface (phonons) are treated classically, while the H-surface motion is treated using a one-dimensional quantum wave packet propagation method. The sticking probabilities are calculated and the individual contributions of the phonon bands to the collision dynamics are analyzed for surface temperatures of 10, 150, and 300 K and hydrogen kinetic energies ranging from 0.13 to 1.08 eV. An analytical form of the sticking probability as a function of the surface temperature is also proposed.
机译:使用混合经典量子方法研究了化学吸附在(0001)石墨表面上的一个氢原子的粘附。共线散射法中系统的声子模式包括在动力学计算中。经典地处理表面(声子)的振动自由度,而使用一维量子波包传播方法来处理H表面运动。计算了粘附概率,并分析了10、150和300 K的表面温度以及0.13至1.08 eV的氢动能对声子带对碰撞动力学的贡献。还提出了粘附概率随表面温度变化的分析形式。

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