Ground-State Phase Diagram of the Extended Ising Model on the Shastry-Sutherland Lattice

• Authors: H. Čenčariková , P. Farkašovský , P. Puchala
• Languages of publication: EN

Abstracts

EN

The ground-state phase diagram of the Ising model on the Shastry-Sutherland lattice with the first (J_1), second (J_2), third (J_3) and fourth (J_4) nearest neighbour spin couplings is studied using the exact and well controlled numerical method. It is shown that switching on of the J_3 and J_4 interactions (in addition to usually considered J_1 and J_2 interactions) leads to stabilization of the following dominant magnetic phases with m/m_s=1/9, 1/6, 4/9, 1/2 and 5/9, which is manifested in appearance of new magnetization plateaus on the magnetization curve of the model at given values of m/m_s. The obtained results are consistent with experimental measurements of magnetization curves in selected rare-earth tetraborides.

Keywords

EN

75.10.-b; 75.60.Ej; 75.40.Mg

Discipline

• 75.40.Mg: Numerical simulation studies
• 75.60.Ej: Magnetization curves, hysteresis, Barkhausen and related effects(for hysteresis in ferroelectricity, see 77.80.Dj)
• 75.10.-b: General theory and models of magnetic ordering(see also 05.50.+q Lattice theory and statistics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2014
• Volume: 126
• Issue: 1
• Pages: 46-47

Dates

published

2014-07

Contributors

author

H. Čenčariková

• Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia

author

P. Farkašovský

• Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia

author

P. Puchala

• Institute of Physics, Faculty of Sciences, P. J. Šafarik University, Park Angelinum 9, 041 54 Košice, Slovakia

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Identifiers

DOI

10.12693/APhysPolA.126.46