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On the coexistence of different types of long-range order in the strongly frustrated two-dimensional Heisenberg model
- Source :
-
Solid State Communications . May2012, Vol. 152 Issue 10, p831-834. 4p. - Publication Year :
- 2012
-
Abstract
- Abstract: In the spherically symmetric self-consistent approach to spin–spin Green’s functions, we consider a two-dimensional strongly frustrated quantum antiferromagnet. In the classical limit , the phase diagram of the model demonstrates two triple points. We show that, in the quantum limit for , a quadruple point of the quantum phase transition appears. At this point, the four coexisting phases are a disordered spin-liquid phase and three phases with different types of long-range order. Two of them are well-known “checkerboard” Néel order and stripe order; the last one corresponds to a non-trivial state with two coexisting mutually penetrating long-range orders. [Copyright &y& Elsevier]
Details
- Language :
- English
- ISSN :
- 00381098
- Volume :
- 152
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Solid State Communications
- Publication Type :
- Academic Journal
- Accession number :
- 74408734
- Full Text :
- https://doi.org/10.1016/j.ssc.2012.02.024