Detection of topological transitions by transport through molecules and nanodevices

Details Detection of topological transitions by transport through molecules and nanodevices Detection of topological transitions by transport through molecules and nanodevices

2004-06-16

arxiv.org/abs/cond-mat/0406355v1

Phys. Rev. Lett. 93, 076801 (2004).

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 5 figures, to appear in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.93.076801

We analyze the phase transitions of an interacting electronic system weakly coupled to free-electron leads by considering its zero-bias conductance. This is expressed in terms of two effective impurity models for the cases with and without spin degeneracy. We demonstrate using the half-filled ionic Hubbard ring that the weight of the first conductance peak as a function of external flux or of the difference in gate voltages between even and odd sites allows one to identify the topological charge transition between a correlated insulator and a band insulator.

Affiliated with

Also associated with

No associations

Rating

Detection of topological transitions by transport through molecules and nanodevices 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 Detection of topological transitions by transport through molecules and nanodevices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of topological transitions by transport through molecules and nanodevices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-218941