Superparamagnetic-Like Behaviour in RE_2WO_6 Tungstates (Where RE = Nd, Sm, Eu, Gd, Dy, Ho and Er)

• Authors: T. Groń , E. Tomaszewicz , P. Urbanowicz , H. Duda , T. Mydlarz
• Languages of publication: EN

Abstracts

EN

The magnetization isotherms were used to study the superparamagnetic-like behaviour in polycrystalline (powder) RE_2WO_6 tungstates (where RE = Nd, Sm, Eu, Gd, Dy, Ho and Er). The magnetization isotherms of the majority tungstates under study revealed both the spontaneous magnetic moments and hysteresis characteristic for the superparamagnetic-like behaviour with blocking temperature T_{B} ≈ 30 K except the Sm_2WO_6 and Eu_2WO_6 compounds.

Keywords

EN

75.20.-g; 75.25.Dk; 75.30.Cr; 73.61.Ng

Discipline

• 75.30.Cr: Saturation moments and magnetic susceptibilities
• 75.20.-g: Diamagnetism, paramagnetism, and superparamagnetism
• 75.25.Dk: Orbital, charge, and other orders, including coupling of these orders
• 73.61.Ng: Insulators

• Journal: Acta Physica Polonica A
• Year: 2011
• Volume: 119
• Issue: 5
• Pages: 708-710

Dates

published

2011-05

Contributors

author

T. Groń

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

author

E. Tomaszewicz

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

author

P. Urbanowicz

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

author

H. Duda

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

author

T. Mydlarz

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

References

• 1. P. Urbanowicz, E. Tomaszewicz, T. Groń, H. Duda, A.W. Pacyna, T. Mydlarz, Physica B 404, 2213 (2009)
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• 3. T. Kim, S. Kang, J. Lumin. 122-123, 964 (2007)
• 4. E. Tomaszewicz, Solid State Sci. 8, 508 (2006); Thermochim. Acta 447, 69 (2006)
• 5. A. Earnshaw, Introduction to Magnetochemistry, Academic Press, London 1968
• 6. A.H. Morrish, Physical Principles of Magnetism, Wiley, New York 1965
• 7. C. Kittel, Introduction to Solid State Physics, Wiley, New York 1960
• 8. C.M. Hurd, Contemp. Phys. 23, 469 (1982)
• 9. J.J. Prejean, M.J. Joliclerc, P. Mond, J. Phys. 41, 427 (1980)

Identifiers

DOI

10.12693/APhysPolA.119.708