Paramagnetism of Cu_3RE_2W_4O_{18} Semiconductors (RE = Gd, Dy-Er)

• Authors: T. Groń , E. Tomaszewicz , H. Duda , S. Mazur
• Languages of publication: EN

Abstracts

EN

Cu_3RE_2W_4O_{18} tungstates (RE = Gd, Dy-Er) are paramagnets in the temperature range 4.2-300 K visible also in the absence of the energy losses in the curve of the imaginary part of magnetic susceptibility, χ". The negative values of the paramagnetic Curie-Weiss temperature, θ, may suggest the weak antiferromagnetic coupling below 4.2 K. The temperature independent component of magnetic susceptibility has a positive value indicating a domination of the Van Vleck contribution. Calculations of the effective number of the Bohr magnetons revealed that the orbital contribution to the magnetic moment comes mainly from the RE^{3+} ions.

Keywords

EN

75.50.Pp; 75.20.-g; 75.30.Cr

Discipline

• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 75.20.-g: Diamagnetism, paramagnetism, and superparamagnetism
• 75.50.Pp: Magnetic semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2013
• Volume: 124
• Issue: 5
• Pages: 885-887

Dates

published

2013-11

Contributors

author

T. Groń

• University of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland

author

E. Tomaszewicz

• West Pomeranian University of Technology, Department of Inorganic and Analytical Chemistry, al. Piastów 42, 71-065 Szczecin, Poland

author

H. Duda

• University of Silesia, Institute of Physics, Uniwersytecka 4, 40-007 Katowice, Poland

author

S. Mazur

• International Laboratory of High Magnetic Fields and Low Temperatures, Gajowicka 95, 53-529 Wrocław, Poland

References

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Identifiers

DOI

10.12693/APhysPolA.124.885