Exchange Interactions in a Low-Dimensional Magnetic System Cu(H_{2}O)_{2}(en)SO_{4}

• Authors: R. Sýkora , D. Legut , U. Wdowik
• Languages of publication: EN

Abstracts

EN

We report a theoretical ab-initio investigation of the exchange interaction between Cu atoms in Cu(H_{2}O)_{2}(en)SO_{4}, en=C_{2}H_{8}N_{2}(ethylenediamine), an insulating magnetic material. Unlike previous experimental studies which describe the system as a quasi-two-dimensional antiferromagnet, our results, based on the mapping of the system onto an effective Heisenberg model, suggest a quasi-one-dimensional character of magnetism, with the exchange coupling between the Cu atoms being propagated along a zigzag line, lying in the crystal's bc plane and connecting the Cu atoms through the N atoms. Furthermore, we report the calculated positions of the H atoms that have not been provided in experimental papers.

Keywords

EN

75.10.Hk; 75.10.-b; 75.40.Cx; 75.50.Ee

Discipline

• 75.10.Hk: Classical spin models
• 75.50.Ee: Antiferromagnetics
• 75.40.Cx: Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
• 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: 50-51

Dates

published

2014-07

Contributors

author

R. Sýkora

• Nanotechnology Centre, VSB-Technical University of Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic

author

D. Legut

• Nanotechnology Centre, VSB-Technical University of Ostrava, 17. listopadu 15, 708 33 Ostrava, Czech Republic

author

U. Wdowik

• Institute of Technology, Pedagogical University, ul. Podchorazych 2, 30-084 Kraków, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.126.50