EPR Study of the Two-Dimensional Quantum System Cu(en)(H_2O)_2SO_4

• Authors: R. Tarasenko , A. Orendáčová , E. Čižmár , M. Orendáč , S. Zvyagin , J. Wosnitza
• Languages of publication: EN

Abstracts

EN

The angular dependence of electron paramagnetic resonance spectra of Cu(en)(H_2O)_2SO_4 single crystals was studied in the X-band frequency range at temperatures 4 and 300 K. Analysis of the linewidth at 300 K revealed nice agreement with the angular variation of the g-factor. This coincidence is the manifestation of the symmetric and antisymmetric exchange coupling, as main broadening mechanisms in Cu(en)(H_2O)_2SO_4 at high temperatures. The radical change of the angular dependence of the linewidth observed at 4 K can be ascribed to dipolar coupling.

Keywords

EN

76.30.Fc; 75.40.-s

Discipline

• 76.30.Fc: Iron group (3d) ions and impurities (Ti-Cu)
• 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: 2012
• Volume: 121
• Issue: 5-6
• Pages: 1095-1097

Dates

published

2012-05

Contributors

author

R. Tarasenko

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Park Angelinum 9, SK-041 54 Košice, Slovak Republic

author

A. Orendáčová

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Park Angelinum 9, SK-041 54 Košice, Slovak Republic

author

E. Čižmár

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Park Angelinum 9, SK-041 54 Košice, Slovak Republic

author

M. Orendáč

• Centre of Low Temperature Physics of P.J. Šafárik University and SAS, Park Angelinum 9, SK-041 54 Košice, Slovak Republic

author

S. Zvyagin

• Dresden High Magnetic Field Laboratory (HLD), Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany

author

J. Wosnitza

• Dresden High Magnetic Field Laboratory (HLD), Helmholtz-Zentrum Dresden-Rossendorf, 01314 Dresden, Germany

References

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Identifiers

DOI

10.12693/APhysPolA.121.1095