Destruction of Peierls dimerization in the molecular crystal model: Effects of quantum phonon fluctuations

Details Destruction of Peierls dimerization in the molecular crystal model: Effects of quantum phonon fluctuations Destruction of Peierls dimerization in the molecular crystal model: Effects of quantum phonon fluctuations

1995-10-09

arxiv.org/abs/cond-mat/9510048v1

Physics

Condensed Matter

Revtex, 4 pages, to appear in Physical Review B as a Rapid Communication (1 figure available upon request)

Scientific paper

10.1103/PhysRevB.52.R15683

Effects of quantum phonon fluctuations on the Peierls dimerization in the one-dimensional molecular crystal model are reexamined by a functional integral approach. An equation for the dimerization order parameter is obtained within a one-loop approximation. The destruction of Peierls dimerization is found by taking the quantum phonon fluctuations into account for the spin-1/2 electron system. The consistency and discrepancy of the result with previous ones are discussed.

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