Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2008-04-30
Phys. Rev. B 78, 085128 (2008)
Physics
Condensed Matter
Strongly Correlated Electrons
10 pages, 13 figures
Scientific paper
10.1103/PhysRevB.78.085128
We investigate the half-filled Hubbard chain with additional nearest- and next-nearest-neighbor spin exchange, J1 and J2, using bosonization and the density-matrix renormalization group. For J2 = 0 we find a spin-density-wave phase for all positive values of the Hubbard interaction U and the Heisenberg exchange J1. A frustrating spin exchange J2 induces a bond-order-wave phase. For some values of J1, J2 and U, we observe a spin-gapped metallic Luther-Emery phase.
Gebhard Florian
Huang Xing
Noack Reinhard M.
Sólyom Jeno
Szirmai Edina
No associations
LandOfFree
Phase diagram of the t-U-J1-J2 chain at half filling 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 Phase diagram of the t-U-J1-J2 chain at half filling, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase diagram of the t-U-J1-J2 chain at half filling will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-577831