Exact Ground States of Frustrated Spin-1 Ising-Heisenberg and Heisenberg Ladders in a Magnetic Field

• Authors: J. Strečka , F. Michaud , F. Mila
• Languages of publication: EN

Abstracts

EN

Ground states of the frustrated spin-1 Ising-Heisenberg two-leg ladder with Heisenberg intra-rung coupling and only Ising interaction along legs and diagonals are rigorously found by taking advantage of local conservation of the total spin on each rung. The constructed ground-state phase diagram of the frustrated spin-1 Ising-Heisenberg ladder is then compared with the analogous phase diagram of the fully quantum spin-1 Heisenberg two-leg ladder obtained by density matrix renormalization group (DMRG) calculations. Both investigated spin models exhibit quite similar magnetization scenarios, which involve intermediate plateaux at one-quarter, one-half and three-quarters of the saturation magnetization.

Keywords

EN

05.50.+q; 75.10.Jm; 75.10.Kt; 75.60.Ej

Discipline

• 75.10.Kt: Quantum spin liquids, valence bond phases and related phenomena
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)
• 05.50.+q: Lattice theory and statistics (Ising, Potts, etc.)(see also 64.60.Cn Order-disorder transformations, and 75.10.Hk Classical spin models)
• 75.10.Jm: Quantized spin models, including quantum spin frustration

• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 24-25

Dates

published

2014-07

Contributors

author

J. Strečka

• Institute of Physics, Faculty of Science, P.J. Šafárik University, Park Angelinum 9, 040 01 Košice, Slovakia

author

F. Michaud

• Institute of Theoretical Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland

author

F. Mila

• Institute of Theoretical Physics, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland

References

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Identifiers

DOI

10.12693/APhysPolA.126.24