Refractive index of lithium fluoride ramp compressed to 800 GPa
Refractive index of lithium fluoride ramp compressed to 800 GPa
复制标题
DOI：
10.1063/1.3599884
复制
发表时间：
2011-06-15
影响因子：
3.2
通讯作者：
Collins, G. W.
中科院分区：
文献类型：
--
作者：
Fratanduono, D. E.;Boehly, T. R.;Collins, G. W.
我们报告的最高压力下，透明绝缘体已被观察到。斜坡压缩氟化锂（LiF）的折射率测量到800 GPa的压力，并观察到保持其线性依赖于密度。一个有效的单振荡器模型推断，随着密度的增加，带隙单调关闭，这表明LiF的金属化应该发生在4000 GPa以上的压力下，并且LiF应该在极高的压力下保持透明。(C)2011年美国物理学会。[doi：10.1063/ 1.3599884]
We report the highest pressure under which a transparent insulator has been observed. The refractive index of ramp-compressed lithium fluoride (LiF) is measured up to a pressure of 800 GPa and is observed to maintain its linear dependence on density. An effective single-oscillator model infers that the bandgap monotonically closes with increasing density, indicating that metallization of LiF should occur at pressures above 4000 GPa, and that LiF should remain transparent at extremely high pressures. (C) 2011 American Institute of Physics. [doi: 10.1063/ 1.3599884]