Journal
PHYSICAL REVIEW LETTERS
Volume 93, Issue 21, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.93.217202
Keywords
-
Categories
Ask authors/readers for more resources
We introduce a frustrated spin 1/2 Hamiltonian which is an extension of the two dimensional J(1)-J(2) Heisenberg model. The ground states of this model are exactly obtained at a first-order quantum phase transition between two valence bond crystals. At this point, the low energy excitations are deconfined spinons and spin-charge separation occurs under doping in the limit of low concentration of holes. In addition, this point is characterized by the proliferation of topological defects.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available