Phase diagram of thespin−12triangularJ1−J2Heisenberg model on a three-leg cylinder
| Autor: | S. N. Saadatmand, Ian P. McCulloch, Ben Powell |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
Physics
Phase transition Condensed matter physics Heisenberg model Density matrix renormalization group Condensed Matter Physics Electronic Optical and Magnetic Materials Quantum mechanics Phase (matter) Cylinder Condensed Matter::Strongly Correlated Electrons Hexagonal lattice Spin (physics) Phase diagram |
| Zdroj: | Physical Review B. 91 |
| ISSN: | 1550-235X 1098-0121 |
| DOI: | 10.1103/physrevb.91.245119 |
| Popis: | We study the phase diagram of the frustrated Heisenberg model on the triangular lattice with nearest- and next-nearest-neighbor spin-exchange coupling, on three-leg ladders. Using the density-matrix renormalization-group method, we obtain the complete phase diagram of the model, which includes quasi-long-range 120° and columnar order, and a Majumdar-Ghosh phase with short-ranged correlations. All these phases are nonchiral and planar. We also identify the nature of phase transitions. |
| Databáze: | OpenAIRE |
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