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Magnetization plateau and supersolid phases in the spin-1/2 antiferromagnetic Heisenberg model on a tetragonally distorted fcc lattice
- Publication Year :
- 2019
- Publisher :
- arXiv, 2019.
-
Abstract
- The Heisenberg model on a face center cubic (fcc) lattice is a typical three-dimensional frustrated spin system expected to have magnetization plateaus and supersolid phases. There are model compounds ${A}_{2}{\mathrm{CoTeO}}_{6}$ ($A=\text{Ca}$, Sr, Pb) for the fcc lattice but with lattice distortions. Motivated by the presence of the compounds, we investigate the ground state of the spin-1/2 antiferromagnetic Heisenberg model on a tetragonally distorted fcc lattice in the magnetic field using a large-size cluster mean-field method for the sake of finding new supersolid phases. We find five supersolid phases in the model, indicating the possibility to observe supersolid phases in these compounds. We also find that one of the supersolid phases is similar to the nonclassical coplanar phase obtained in the $XXZ$ model on the triangular lattice.
- Subjects :
- Physics
Condensed Matter::Quantum Gases
Condensed matter physics
Strongly Correlated Electrons (cond-mat.str-el)
Heisenberg model
FOS: Physical sciences
02 engineering and technology
Cubic crystal system
021001 nanoscience & nanotechnology
01 natural sciences
Supersolid
Magnetization
Condensed Matter - Strongly Correlated Electrons
Lattice (order)
0103 physical sciences
Antiferromagnetism
Hexagonal lattice
Condensed Matter::Strongly Correlated Electrons
010306 general physics
0210 nano-technology
Ground state
Subjects
Details
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....91db53ce641fb2934b5242cfa2fca8c3
- Full Text :
- https://doi.org/10.48550/arxiv.1901.02996