Magneto-Structural Correlations in Cu(en)_2SO_4 - a new Magnet with Two-Dimensional Triangular Arrangement of Cu(II) ions

• Authors: M. Kajňaková , A. Orendáčová , M. Orendáč , A. Feher , M. Mal'arová , Z. Trávníček
• Languages of publication: EN

Abstracts

EN

Cu(en)_2SO_4 (en = 1, 2-diaminoethane) was synthesized and its crystal structure determined. From a crystallographic point of view, the compound might represent an example for the realization of a S =1/2 Heisenberg magnet on a two-dimensional spatially anisotropic triangular lattice. Magnetic susceptibility and magnetization studies were performed to analyze the magneto-structural correlations and to characterize the magnetic subsystem of the present compound. The results indicate the presence of antiferromagnetic interactions between magnetic ions with zJ/k_B≈-14.6 K and short-range order near 7 K.

Keywords

EN

75.30.Gw; 75.40.-s; 75.30.Et; 75.50.Ee

Discipline

• 75.30.Et: Exchange and superexchange interactions(see also 71.70.Gm Exchange interactions)
• 75.30.Gw: Magnetic anisotropy
• 75.50.Ee: Antiferromagnetics
• 75.40.-s: Critical-point effects, specific heats, short-range order(for equilibrium properties near critical points, see 64.60.F-; for dynamical critical phenomena, see 64.60.Ht)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 507-510

Dates

published

2008-01

received

2007-07-09

Contributors

author

M. Kajňaková

• Centre of Low Temperature Physics of the Faculty of Science UPJŠ, and IEP SAS, Park Angelinum 9, 04154 Košice, Slovakia

author

A. Orendáčová

• Centre of Low Temperature Physics of the Faculty of Science UPJŠ, and IEP SAS, Park Angelinum 9, 04154 Košice, Slovakia

author

M. Orendáč

• Centre of Low Temperature Physics of the Faculty of Science UPJŠ, and IEP SAS, Park Angelinum 9, 04154 Košice, Slovakia

author

A. Feher

• Centre of Low Temperature Physics of the Faculty of Science UPJŠ, and IEP SAS, Park Angelinum 9, 04154 Košice, Slovakia

author

M. Mal'arová

• Department of Inorganic Chemistry, Faculty of Science, PalackýUniversity, Křížkovského, 10, 771 47 Olomouc, Czech Republic

author

Z. Trávníček

• Department of Inorganic Chemistry, Faculty of Science, PalackýUniversity, Křížkovského, 10, 771 47 Olomouc, Czech Republic

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Identifiers

DOI

10.12693/APhysPolA.113.507