Ferromagnetic Order in Single-Crystalline (Cd_{x}Al_{y})[Cr_2]Se_{z} Semiconductors

• Authors: H. Duda , P. Rduch , E. Malicka , T. Groń , J. Kusz
• Languages of publication: EN

Abstracts

EN

Measurements of the magnetic properties, the electrical conductivity and the Seebeck effect were performed on single crystals (Cd_{x}Al_{y})[Cr_2]Se_{z} between 77 and 300 K. All samples have a ferromagnetic order with the Curie temperature of 130 K and the paramagnetic Curie-Weiss temperature of 155 K. Both these temperatures do not depend significantly on the Al substitution. The electrical conductivity of single crystals CdCr_2Se_4 doped with Al was p-type and showed the change of log σ versus 1/T slope above 150 K. This fact is interpreted as being due to the onset of impurity conduction and structural defects.

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: 2011
• Volume: 119
• Issue: 5
• Pages: 702-704

Dates

published

2011-05

Contributors

author

H. Duda

• 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

J. Kusz

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

References

• 1. P.K. Baltzer, H.W. Lehmann, M. Robbins, Phys. Rev. Lett. 15, 493 (1965)
• 2. P.K. Baltzer, P.J. Wojtowicz, M. Robbins, E. Lopatin, Phys. Rev. 151, 367 (1966)
• 3. H.W. Lehman, Phys. Rev. 163, 488 (1967)
• 4. A. Amith, L. Friedman, Phys. Rev. B 2, 434 (1970)
• 5. A. Waśkowska, L. Gerward, J. Staun Olsen, W. Morgenroth, E. Malicka, D. Skrzypek, J. Phys., Condens. Matter. 20, 425209 (2008)
• 6. E. Malicka, A. Waśkowska, D. Skrzypek, R. Sitko, D. Kaczorowski, J. Solid State Chem. 182, 3149 (2009)
• 7. E. Malicka, H. Duda, T. Groń, S. Mazur, A. Waśkowska, R. Sitko, J. Alloys Comp. 442, 186 (2007)
• 8. I. Okońska-Kozłowska, E. Malicka, A. Waśkowska, J. Heimann, T. Mydlarz, J. Solid State Chem. 158, 34 (2001)
• 9. T. Groń, A. Krajewski, J. Kusz, E. Malicka, I. Okońska-Kozłowska, A. Waśkowska, Phys. Rev. B 71, 035208 (2005)
• 10. T. Groń, H. Duda, E. Malicka, B. Zawisza, J. Krok-Kowalski, A.W. Pacyna, Acta Phys. Pol. A 116, 969 (2009)
• 11. G.M. Sheldrick, SHELXL-93, program for the refinement of crystal structures, University of Göttingen, 1993
• 12. R.D. Shannon, Acta Crystallogr. A 32, 751 (1976)

Identifiers

DOI

10.12693/APhysPolA.119.702