期刊
PHYSICAL REVIEW B
卷 106, 期 19, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.106.195119
关键词
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资金
- CONICET
- Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET, Argentina) [PIP 11220200102332CO, PIP 11220200101877CO, PIP 11220200101460CO, PIP 0039-2017]
- Universidad Nacional de La Plata (UNLP, Argentina) [11/X845, 11/X896]
A theoretical model for two new tellurite sulfates has been determined to be compatible with ab initio calculations. The results confirm previous speculations about the couplings and reveal a model with a mixture of ferromagnetic and antiferromagnetic couplings. Numerical calculations show the presence of Ising-like magnetization plateaus at rational values of saturation magnetization.
A theoretical model for two new tellurite sulfates, namely Na2Cu5(TeO3)(SO4)3(OH)4 and K2Cu5(TeO3)(SO4)3(OH)4, is determined to be compatible with ab initio calculations. The results obtained in this paper show that some previous speculations in the literature about the couplings are correct, obtaining a model with a mixture of ferromagnetic and antiferromagnetic couplings. We use a combination of numerical techniques to study the magnetic properties of the model. Our numerical calculations based on the density-matrix renormalization group method reveal that the system presents Ising-like magnetization plateaus at rational values of the saturation magnetization.
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