Critical Behaviour of the Mean-Field Ferromagnet Cu_{1.02}[Cr_{1.77}Ti_{0.24}]Se_4

• Authors: J. Krok-Kowalski , G. Władarz , P. Rduch , E. Malicka , T. Groń , A. Guzik
• Languages of publication: EN

Abstracts

EN

Magnetization, M, and susceptibility, χ, measurements showed both strong lowering of magnetic moment in comparison with CuCr_2Se_4 matrix and zero-field-cooling-field-cooling susceptibility splitting characteristic for the spin-glass behaviour. Isothermal magnetization curves, M(H), easy saturate and large values both of the Curie T_{C}=253 K and Curie-Weiss θ=283.5 K temperatures indicate the ferromagnetic order which coexists with the spin-glass state. The critical behaviour investigated around the paramagnetic-ferromagnetic phase transition revealed that the values of critical exponents are close to those predicted by the mean field model for long-range magnetic interactions.

Keywords

EN

75.40.Cx; 75.50.Dd; 64.60.Ht

Discipline

• 64.60.Ht: Dynamic critical phenomena(for quantum critical phenomena in superconductivity, see 74.40.Kb)
• 75.40.Cx: Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
• 75.50.Dd: Nonmetallic ferromagnetic materials

• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 6
• Pages: 1102-1104

Dates

published

2012-12

Contributors

author

J. Krok-Kowalski

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

author

G. Władarz

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

author

P. Rduch

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

author

E. Malicka

• Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland

author

T. Groń

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

author

A. Guzik

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

References

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• 12. A. Earnshaw, Introduction to Magnetochemistry, Academic Press, London 1968

Identifiers

DOI

10.12693/APhysPolA.122.1102