Generic short-range interactions in two-leg ladders

Details Generic short-range interactions in two-leg ladders Generic short-range interactions in two-leg ladders

2008-08-25

arxiv.org/abs/0808.3297v1

Phys. Rev. B 79, 045132 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

Scientific paper

10.1103/PhysRevB.79.045132

We derive a Hamiltonian for a two-leg ladder which includes an arbitrary number of charge and spin interactions. To illustrate this Hamiltonian we consider two examples and use a renormalization group technique to evaluate the ground state phases. The first example is a two-leg ladder with zigzagged legs. We find that increasing the number of interactions in such a two-leg ladder may result in a richer phase diagram, particularly at half-filling where a few exotic phases are possible when the number of interactions are large and the angle of the zigzag is small. In the second example we determine under which conditions a two-leg ladder at quarter-filling is able to support a Tomanaga-Luttinger liquid phase. We show that this is only possible when the spin interactions across the rungs are ferromagnetic. In both examples we focus on lithium purple bronze, a two-leg ladder with zigzagged legs which is though to support a Tomanaga-Luttinger liquid phase.

Affiliated with

Also associated with

No associations

Rating

Generic short-range interactions in two-leg ladders 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 Generic short-range interactions in two-leg ladders, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Generic short-range interactions in two-leg ladders will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-380313