Multi-critical behavior of $Z_2\times O(2)$ Gross-Neveu-Yukawa theory in graphene

Details Multi-critical behavior of $Z_2\times O(2)$ Gross-Neveu-Yukawa theory in graphene Multi-critical behavior of $Z_2\times O(2)$ Gross-Neveu-Yukawa theory in graphene

2011-06-07

arxiv.org/abs/1106.1419v2

Phys.Rev.84:113404,2011

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure, Published Version with corrections and new references

Scientific paper

10.1103/PhysRevB.84.113404

Multi-critical behavior of interacting fermions in graphene's honeycomb lattice is presented. In particular, we considered the spin triplet insulating orders, where the spin rotational symmetry of the order parameter is explicitly broken. By casting the problem in terms of Gross-Neveu-Yukawa theory we show that such symmetry-breaking terms are irrelevant near the metal-insulator critical point. A finite Yukawa coupling among bosons and fermions improves the stability of such critical point against the symmetry-breaking perturbations. Physical sources of such symmetry-breaking terms are pointed out. Critical exponents are calculated near the transitions as well.

Affiliated with

Also associated with

No associations

Rating

Multi-critical behavior of $Z_2\times O(2)$ Gross-Neveu-Yukawa theory in graphene 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 Multi-critical behavior of $Z_2\times O(2)$ Gross-Neveu-Yukawa theory in graphene, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-critical behavior of $Z_2\times O(2)$ Gross-Neveu-Yukawa theory in graphene will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-27465