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Shock-induced lattice deformation of CdS single crystal by nanosecond time-resolved Laue diffraction

机译:纳秒时间分辨劳厄衍射对CdS单晶的激生晶格变形

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We report a single-shot nanosecond time-resolved Laue diffraction measurement of cadmium sulfide (CdS) single crystal under laser-induced shock compression. The observed Laue diffraction pattern maintains sixfolding axis of the wurtzite structure for 10 ns at a shock pressure of 3.92 GPa, which is above the threshold pressure of phase transition to a rocksalt structure. This result shows that a transient wurtzite structure is observed above its threshold pressure to a rocksalt structure on a nanosecond time scale. Uniaxial compression was confirmed by the c/a value of the transient structure obtained from the (201) and (302) peaks.
机译:我们报告在激光诱导的冲击压缩下硫化镉(CdS)单晶的单次纳秒时间分辨劳厄衍射测量。在3.92 GPa的冲击压力下,观察到的Laue衍射图样可将纤锌矿结构的六折轴保持10 ns,该压力高于相转变为岩盐结构的阈值压力。该结果表明,在其阈值压力之上,在纳秒级的时间尺度上观察到了瞬变纤锌矿结构为岩盐结构。通过从(201)和(302)峰获得的瞬态结构的c / a值证实了单轴压缩。

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