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