Hopkinson-Like Effect in Single-Crystalline CdCr_2Se_4 and Cd[Cr_{1.89}Ti_{0.08}]Se_4

• Authors: E. Malicka , T. Groń , A. Pacyna , H. Duda , J. Krok-Kowalski
• Languages of publication: EN

Abstracts

EN

The static (dc) and dynamic (ac) magnetic measurements of CdCr_2Se_4 and Cd[Cr_{1.89}Ti_{0.08}]Se_4 showed their ferromagnetic properties with a Curie temperature T_{C} ≈ 130 K and revealed on the real component of ac susceptibility curve, the peaks near T_{C} at 200 Oe, 450 Oe and 1 kOe, characteristic for the Hopkinson ones. The meaningful reduction of saturation moment to 4.73 μ_{B}/f.u. for Cd[Cr_{1.89}Ti_{0.08}]Se_4 suggests the diamagnetic configuration of Ti ions, which dilutes the ferromagnetic sublattice of Cr ones and causes reducing of the energy losses visible on the imaginary components of ac susceptibility curve. Close for zero values of higher susceptibility harmonics above T_{C} are pointing out to the lack of the spin fluctuations in the paramagnetic state.

Keywords

EN

72.80.Jc; 75.50.Pp; 75.50.Dd

Discipline

• 72.80.Jc: Other crystalline inorganic semiconductors
• 75.50.Dd: Nonmetallic ferromagnetic materials
• 75.50.Pp: Magnetic semiconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 3
• Pages: 690-693

Dates

published

2012-03

received

2011-06-25

Contributors

author

E. Malicka

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

author

T. Groń

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

author

A. Pacyna

• The Henryk Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, E. Radzikowskiego 152, ULICA, 31-342 Kraków, Poland

author

H. Duda

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

author

J. Krok-Kowalski

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

References

• 1. J. Hopkinson, Proc. R. Soc. Lond. 48, 1 (1890)
• 2. O. Popov, M. Mikhov, J. Magn. Magn. Mater. 75, 135 (1988)
• 3. M. Kersten, Z. Angew. Phys. 8, 313 (1956)
• 4. E.C. Stoner, E.P. Wohlfarth, Philos. Trans. R. Soc. A 240, 599 (1948)
• 5. H.W. Lehmann, Phys. Rev. 163, 488 (1967)
• 6. P.K. Baltzer, H.W. Lehmann, M. Robbins, Phys. Rev. Lett. 15, 493 (1965)
• 7. R.C. LeCraw, H. von Philipsborn, M.D. Sturge, J. Appl. Phys. 38, 965 (1967)
• 8. P.K. Baltzer, M. Robbins, P.J. Wojtowicz, J. Appl. Phys. 38, 953 (1967)
• 9. V. Tsurkan, St. Plogmann, M. Demeter, D. Hartmann, M. Neumann, Eur. Phys. J. B 15, 401 (2000)
• 10. T. Groń, A. Krajewski, J. Kusz, E. Malicka, I. Okońska-Kozłowska, A. Waśkowska, Phys. Rev. B 71, 035208 (2005)
• 11. T. Groń, H. Duda, E. Malicka, B. Zawisza, J. Krok-Kowalski, A.W. Pacyna, Acta Phys. Pol. A 116, 969 (2009)
• 12. T. Groń, E. Malicka, B. Zawisza, H. Duda, J. Krok-Kowalski, A.W. Pacyna, Acta Phys. Pol. A 119, 714 (2011)
• 13. G.M. Sheldrick, 1997 SHELXL-97, Program for Crystal Structure Refinement, University of Göttingen
• 14. R. Sitko, B. Zawisza, E. Malicka, Spectrochim. Acta B 64, 436 (2009)
• 15. J. Sherman, Spectrochim. Acta 7, 283 (1955)
• 16. P.A. Pella, L. Feng, J.A. Small, X-ray Spectrum 14, 125 (1985)
• 17. P.A. Pella, L. Feng, J.A. Small, X-ray Spectrum 20, 109 (1991)
• 18. T. Groń, A.W. Pacyna, E. Malicka, Solid State Phenom. 170, 213 (2011)
• 19. T. Sato, T. Ando, T. Watanabe, S. Itoh, Y. Endoh, M. Furusaka, Phys. Rev. B 48, 6074 (1993)
• 20. T. Hashimoto, A. Sato, Y. Fujiwara, J. Phys. Soc. Jpn. 35, 81 (1973)
• 21. J. Hemberger, H.-A. Krug, V. von Nidda, A. Tsurkan, Loidl, Phys. Rev. Lett. 98, 147203(4) (2007)
• 22. E. Malicka, T. Groń, A. Ślebarski, A.W. Pacyna, J. Goraus, M. Fijałkowski, J. Heimann, J. Phys. Chem. Solids 72, 974 (2011)
• 23. E. Malicka, T. Groń, A. Ślebarski, A. Gągor, A.W. Pacyna, R. Sitko, J. Goraus, T. Mydlarz, J. Heimann, Mater. Chem. Phys. 131, 142 (2011)

Identifiers

DOI

10.12693/APhysPolA.121.690