The complex structures of warm and hot dense matter are essential tounderstand the behaviors of materials in high energy density physics processesand provide new features of matter constitutions. Here, along a new unifiedfirst-principle determined Hugoniot curve of iron from normal condensedcondition up to 1 Gbar, the novel structures characterized by the ionicclusters and separated "electron bubbles" are revolutionarily unraveled usingnewly developed quantum Langevin molecular dynamics (QLMD). Subsistence ofcomplex clusters, with bonds formed by inner shell electrons of neighbor ions,can persist in the time length of 50 femto-seconds dynamically with quantumflowing bubbles, which are produced by the interplay of Fermi electrondegeneracy, the ionic coupling and the dynamical nature. With the inclusion ofthose complicated features in QLMD, the present data could serve as afirst-principle benchmark in a wide range of temperatures and densities.
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