Stabilization of the surface CDW order parameter by long-range Coulomb interaction

Details Stabilization of the surface CDW order parameter by long-range Coulomb interaction Stabilization of the surface CDW order parameter by long-range Coulomb interaction

2011-10-17

arxiv.org/abs/1110.3608v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1016/j.physb.2012.01.043

We study theoretically formation of two-dimensional (2D) charge density wave (CDW) in a system of conducting chains at the surface of an insulator due to interaction of quasi 1D surface electrons with phonons. We show that the unscreened long-range Coloumb interaction between the charges induced by fluctuations of the CDW phase stabilizes the finite order parameter value at finite temperatures, and thus the long-range order (LRO) exists. In the case of screened Coloumb interaction the phase fluctuations suppress the phase transition, but decay of the order parameter is rather slow, it obeys a power-law $<\Delta^*(r) \Delta(0)> \propto r^{-\gamma}$ with small exponent $\gamma$

Affiliated with

Also associated with

No associations

Rating

Stabilization of the surface CDW order parameter by long-range Coulomb interaction does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Stabilization of the surface CDW order parameter by long-range Coulomb interaction, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stabilization of the surface CDW order parameter by long-range Coulomb interaction will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-317462