Specific Heat and Magnetic Properties of Single-Crystalline (Zn_{0.925}In_{0.054})[Cr_{1.84}In_{0.152}]Se_4 Semiconductor

• Authors: E. Malicka , T. Groń , A. Pacyna , A. Ślebarski , J. Goraus , A. Gągor , T. Mydlarz
• Languages of publication: EN

Abstracts

EN

An antiferromagnetic order with a Néel temperature T_{N} = 17.5 K, a strong ferromagnetic exchange evidenced by a positive Curie-Weiss temperature θ_{CW} = 77.3 K, the fuzzy peaks in the real component of susceptibility χ'(T) and the disappearance of the second critical field were established. The curvature of specific heat C(T) and C(T)/T in surrounding of T_{N} indicated a broad peak, characteristic for the system with inhomogeneous magnetic state (spin-glass-like phase). The calculated magnetic entropy showed the value of S(T) ≈ 1 J/(mol K) which is extremely small; i.e., much lower than the magnetic contribution Rln(2S + 1) = 11.52 J/(mol K) calculated for the spin 3/2.

Keywords

EN

65.40.Ba; 75.50.Ee; 75.50.Pp

Discipline

• 75.50.Ee: Antiferromagnetics
• 75.50.Pp: Magnetic semiconductors
• 65.40.Ba: Heat capacity(for specific heat of magnetic materials, see 75.40.-s)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 122
• Issue: 6
• Pages: 1108-1110

Dates

published

2012-12

Contributors

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. Pacyna

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

author

A. Ślebarski

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

author

J. Goraus

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

author

A. Gągor

• Institute of Low Temperature and Structure Research, Polish Academy of Sciences, P.O. Box 1410, 50-950 Wrocław, Poland

author

T. Mydlarz

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

References

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• 7. T. Groń, A.W. Pacyna, E. Malicka, Solid State Phenom. 170, 213 (2011)
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Identifiers

DOI

10.12693/APhysPolA.122.1108