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Anisotropic frustrated Heisenberg model on the honeycomb lattice
- Source :
- CONICET Digital (CONICET), Consejo Nacional de Investigaciones Científicas y Técnicas, instacron:CONICET
- Publication Year :
- 2012
- Publisher :
- American Physical Society (APS), 2012.
-
Abstract
- We investigate the ground-state phase diagram of an anisotropic Heisenberg model on the honeycomb lattice with competing interactions. We use quantum Monte Carlo simulations, as well as linear spin-wave and Ising series expansions, to determine the phase boundaries of the ordered magnetic phases. We find a region without any classical order in the vicinity of a highly frustrated point. Higher-order correlation functions in this region give no signal for long-range valence-bond order. The low-energy spectrum is derived via exact diagonalization to check for topological order on small-size periodic lattices.<br />10 pages, 9 figures, (supplemental material given as ancillary files)
- Subjects :
- Ciencias Físicas
Quantum Monte Carlo
media_common.quotation_subject
FOS: Physical sciences
Frustration
MAGNETISM
01 natural sciences
010305 fluids & plasmas
purl.org/becyt/ford/1 [https]
Condensed Matter - Strongly Correlated Electrons
Lattice (order)
0103 physical sciences
Topological order
010306 general physics
Condensed Matter - Statistical Mechanics
Phase diagram
media_common
ANISOTROPY
Physics
Strongly Correlated Electrons (cond-mat.str-el)
Statistical Mechanics (cond-mat.stat-mech)
Condensed matter physics
Heisenberg model
purl.org/becyt/ford/1.3 [https]
Condensed Matter Physics
Electronic, Optical and Magnetic Materials
Astronomía
FRUSTRATION
Ising model
Series expansion
QUANTUM
CIENCIAS NATURALES Y EXACTAS
Subjects
Details
- ISSN :
- 1550235X and 10980121
- Volume :
- 85
- Database :
- OpenAIRE
- Journal :
- Physical Review B
- Accession number :
- edsair.doi.dedup.....8a8eccb11b41f3447fd60b9d4b175403