Abstract
The energy band structures of the warm dense plasmas with micro-structures inherited from single-walled carbon nanotubes are studied in detail by using the symmetry-adapted tight-binding model with the electron-ion core Coulomb interactions as the plasma effects. It is found that both the symmetry and the degeneracy of the calculated bands normal for the solid micro-structured targets may be destroyed by the electron-ion core Coulomb interactions. Moreover, the calculated Fermi levels of the micro-structured warm dense plasmas are about 1 eV higher than those of the original carbon nanotubes, while the transition energies of the warm dense plasmas are almost always smaller than those for the original carbon nanotubes.
Highlights
Warm dense matter (WDM) [1, 2] is the state of matter between the condensed and plasma states
This indicates that the Fermi level may be lifted up with the plasma effects introduced by considering the e-i Coulomb interaction
The energy level degeneracy of original tubes at the Brillouin zone boundary is wholly removed and some new kinds of degeneracy appear. This demonstrates that the e-i Coulomb attraction interaction in the single-walled carbon nanotubes (SWCNTs) warm dense plasmas can lower the symmetry of the band structures with respect to the Fermi level and destroy the degeneracy of the band structures at k=
Summary
Warm dense matter (WDM) [1, 2] is the state of matter between the condensed and plasma states. The energy band structures of the warm dense plasmas with micro-structures inherited from single-walled carbon nanotubes are studied in detail by using the symmetry-adapted tight-binding model with the electron-ion core Coulomb interactions as the plasma effects.
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