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

• Publisher: Institute of Physics, Polish Academy of Sciences
• 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

• 1. J. Krok, J. Spałek, S. Juszczyk, J. Warczewski, Phys. Rev. B 28, 6499 (1983)
• 2. F.K. Lotgering, in: Proc. 1964 Int. Conf. on Magnetism, Nottingham, ed. L.F. Bates, Institute of Physics, London 1965, p. 533
• 3. F.K. Lotgering, R.P. Van Stapele, Solid State Commun. 5, 143 (1967)
• 4. C.Th. Hollander, G. Sawatzky, C. Haas, Solid State Commun. 15, 747 (1974)
• 5. O. Yamashita, Y. Yamaguchi, I. Nakatani, H. Watanabe, K. Masumoto, J. Phys. Soc. Jpn. 46, 1145 (1979)
• 6. W. Zarek, Acta Phys. Pol. A 52, 657 (1977)
• 7. H.E. Stanley, Introduction to Phase Transitions and Critical Phenomena, Oxford University Press, London 1971
• 8. A. Arrott, J.E. Noakes, Phys. Rev. Lett. 19, 786 (1967)
• 9. L.P. Lvy, Magnetism and Superconductivity, Springer, Berlin 2000
• 10. J. Denis, Y. Allain, R. Plumier, J. Appl. Phys. 41, 1091 (1970)
• 11. F.K. Lotgering, R.P. Van Stapele, Solid State Commun. 5, 143 (1967)
• 12. A. Earnshaw, Introduction to Magnetochemistry, Academic Press, London 1968

Identifiers

DOI

10.12693/APhysPolA.122.1102