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- Title
STABILITY AND SPIN DENSITY WAVE IN POLYMERIC HUBBARD CHAINS.
- Authors
Duan, Y. F.; Liu, Z. L.; Yao, K. L.
- Abstract
The ground state properties and spin-density wave of polymeric Hubbard chains are studied by means of the mean-field theory. It is shown that topological structure of the chain possesses a flat-band structure of the energy band. Our analysis shows that the on- site Coulomb repulsion of electrons in the chain leads to the coexistence of ferromagnetic and antiferromagnetic order, i,e., the ferrimagnetic order. Away from half filling, the system displays magnetic phase separation. Possible experimental realizations are suggested.
- Subjects
CONTINUUM mechanics; PARTICLES (Nuclear physics); CATHODE rays; ANNIHILATION reactions; ANYONS; BETHE-Salpeter equation
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2005, Vol 19, Issue 15-17, p2586
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979205031365